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Finding the Fourth Proportional to 2,345.68, 3,519.12 and 702.22

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Solution

The fourth proportional to 2,345.68, 3,519.12 and 702.22 is: 1,053.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.68 : 3,519.12 = 702.22 : x
  2. Step 2: Convert to fraction form
    2,345.68/3,519.12 = 702.22/x
  3. Step 3: Cross multiply
    2,345.68x = 3,519.12 × 702.22
  4. Step 4: Simplify right side
    2,345.68x = 2,471,196.45
  5. Step 5: Solve for x
    x = 2,471,196.45/2,345.68
  6. Step 6: Final answer
    x = 1,053.51

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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.