Home / 3,129.60-4,695.29-1,567.72

Finding the Fourth Proportional to 3,129.60, 4,695.29 and 1,567.72

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Solution

The fourth proportional to 3,129.60, 4,695.29 and 1,567.72 is: 2,352.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.60 : 4,695.29 = 1,567.72 : x
  2. Step 2: Convert to fraction form
    3,129.60/4,695.29 = 1,567.72/x
  3. Step 3: Cross multiply
    3,129.60x = 4,695.29 × 1,567.72
  4. Step 4: Simplify right side
    3,129.60x = 7,360,903.95
  5. Step 5: Solve for x
    x = 7,360,903.95/3,129.60
  6. Step 6: Final answer
    x = 2,352.02

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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.