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Finding the Fourth Proportional to 3,347.12, 5,019.24 and 1,266.76

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Solution

The fourth proportional to 3,347.12, 5,019.24 and 1,266.76 is: 1,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.12 : 5,019.24 = 1,266.76 : x
  2. Step 2: Convert to fraction form
    3,347.12/5,019.24 = 1,266.76/x
  3. Step 3: Cross multiply
    3,347.12x = 5,019.24 × 1,266.76
  4. Step 4: Simplify right side
    3,347.12x = 6,358,172.46
  5. Step 5: Solve for x
    x = 6,358,172.46/3,347.12
  6. Step 6: Final answer
    x = 1,899.60

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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.