Home / 3,937.90-5,437.48-2,681.60

Finding the Fourth Proportional to 3,937.90, 5,437.48 and 2,681.60

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Solution

The fourth proportional to 3,937.90, 5,437.48 and 2,681.60 is: 3,702.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.90 : 5,437.48 = 2,681.60 : x
  2. Step 2: Convert to fraction form
    3,937.90/5,437.48 = 2,681.60/x
  3. Step 3: Cross multiply
    3,937.90x = 5,437.48 × 2,681.60
  4. Step 4: Simplify right side
    3,937.90x = 14,581,146.37
  5. Step 5: Solve for x
    x = 14,581,146.37/3,937.90
  6. Step 6: Final answer
    x = 3,702.77

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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.