Home / 4,287.29-6,430.68-1,654.28

Finding the Fourth Proportional to 4,287.29, 6,430.68 and 1,654.28

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Solution

The fourth proportional to 4,287.29, 6,430.68 and 1,654.28 is: 2,481.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.29 : 6,430.68 = 1,654.28 : x
  2. Step 2: Convert to fraction form
    4,287.29/6,430.68 = 1,654.28/x
  3. Step 3: Cross multiply
    4,287.29x = 6,430.68 × 1,654.28
  4. Step 4: Simplify right side
    4,287.29x = 10,638,113.16
  5. Step 5: Solve for x
    x = 10,638,113.16/4,287.29
  6. Step 6: Final answer
    x = 2,481.32

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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.