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Finding the Fourth Proportional to 2,592.99, 3,888.95 and 949.10

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Solution

The fourth proportional to 2,592.99, 3,888.95 and 949.10 is: 1,423.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,592.99 : 3,888.95 = 949.10 : x
  2. Step 2: Convert to fraction form
    2,592.99/3,888.95 = 949.10/x
  3. Step 3: Cross multiply
    2,592.99x = 3,888.95 × 949.10
  4. Step 4: Simplify right side
    2,592.99x = 3,690,978.25
  5. Step 5: Solve for x
    x = 3,690,978.25/2,592.99
  6. Step 6: Final answer
    x = 1,423.44

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Double scale
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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.