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Finding the Fourth Proportional to 3,530.02, 5,294.76 and 1,478.02

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Solution

The fourth proportional to 3,530.02, 5,294.76 and 1,478.02 is: 2,216.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.02 : 5,294.76 = 1,478.02 : x
  2. Step 2: Convert to fraction form
    3,530.02/5,294.76 = 1,478.02/x
  3. Step 3: Cross multiply
    3,530.02x = 5,294.76 × 1,478.02
  4. Step 4: Simplify right side
    3,530.02x = 7,825,761.18
  5. Step 5: Solve for x
    x = 7,825,761.18/3,530.02
  6. Step 6: Final answer
    x = 2,216.92

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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.