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Finding the Fourth Proportional to 2,342.40, 3,513.57 and 611.02

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Solution

The fourth proportional to 2,342.40, 3,513.57 and 611.02 is: 916.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,342.40 : 3,513.57 = 611.02 : x
  2. Step 2: Convert to fraction form
    2,342.40/3,513.57 = 611.02/x
  3. Step 3: Cross multiply
    2,342.40x = 3,513.57 × 611.02
  4. Step 4: Simplify right side
    2,342.40x = 2,146,861.54
  5. Step 5: Solve for x
    x = 2,146,861.54/2,342.40
  6. Step 6: Final answer
    x = 916.52

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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.