Home / 2,567.59-3,543.27-1,388.66

Finding the Fourth Proportional to 2,567.59, 3,543.27 and 1,388.66

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Solution

The fourth proportional to 2,567.59, 3,543.27 and 1,388.66 is: 1,916.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,567.59 : 3,543.27 = 1,388.66 : x
  2. Step 2: Convert to fraction form
    2,567.59/3,543.27 = 1,388.66/x
  3. Step 3: Cross multiply
    2,567.59x = 3,543.27 × 1,388.66
  4. Step 4: Simplify right side
    2,567.59x = 4,920,397.32
  5. Step 5: Solve for x
    x = 4,920,397.32/2,567.59
  6. Step 6: Final answer
    x = 1,916.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.