Home / 2,569.52-3,854.29-720.64

Finding the Fourth Proportional to 2,569.52, 3,854.29 and 720.64

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Solution

The fourth proportional to 2,569.52, 3,854.29 and 720.64 is: 1,080.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,569.52 : 3,854.29 = 720.64 : x
  2. Step 2: Convert to fraction form
    2,569.52/3,854.29 = 720.64/x
  3. Step 3: Cross multiply
    2,569.52x = 3,854.29 × 720.64
  4. Step 4: Simplify right side
    2,569.52x = 2,777,555.55
  5. Step 5: Solve for x
    x = 2,777,555.55/2,569.52
  6. Step 6: Final answer
    x = 1,080.96

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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.