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Finding the Fourth Proportional to 1,502.83, 2,074.02 and 913.15

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Solution

The fourth proportional to 1,502.83, 2,074.02 and 913.15 is: 1,260.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502.83 : 2,074.02 = 913.15 : x
  2. Step 2: Convert to fraction form
    1,502.83/2,074.02 = 913.15/x
  3. Step 3: Cross multiply
    1,502.83x = 2,074.02 × 913.15
  4. Step 4: Simplify right side
    1,502.83x = 1,893,891.36
  5. Step 5: Solve for x
    x = 1,893,891.36/1,502.83
  6. Step 6: Final answer
    x = 1,260.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.