Home / 3,129.47-4,695.10-1,567.59

Finding the Fourth Proportional to 3,129.47, 4,695.10 and 1,567.59

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Solution

The fourth proportional to 3,129.47, 4,695.10 and 1,567.59 is: 2,351.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.47 : 4,695.10 = 1,567.59 : x
  2. Step 2: Convert to fraction form
    3,129.47/4,695.10 = 1,567.59/x
  3. Step 3: Cross multiply
    3,129.47x = 4,695.10 × 1,567.59
  4. Step 4: Simplify right side
    3,129.47x = 7,359,991.81
  5. Step 5: Solve for x
    x = 7,359,991.81/3,129.47
  6. Step 6: Final answer
    x = 2,351.83

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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.