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Finding the Fourth Proportional to 2,598.24, 3,897.36 and 867

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Solution

The fourth proportional to 2,598.24, 3,897.36 and 867 is: 1,300.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,598.24 : 3,897.36 = 867 : x
  2. Step 2: Convert to fraction form
    2,598.24/3,897.36 = 867/x
  3. Step 3: Cross multiply
    2,598.24x = 3,897.36 × 867
  4. Step 4: Simplify right side
    2,598.24x = 3,379,011.12
  5. Step 5: Solve for x
    x = 3,379,011.12/2,598.24
  6. Step 6: Final answer
    x = 1,300.50

Related Problems

Find fourth proportional to 1,299.12, 1,948.68 and 433.50
Half scale
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Double scale
Find fourth proportional to 2,599.24, 3,898.86 and 868
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.