Home / 3,867.49-5,331.54-2,538.91

Finding the Fourth Proportional to 3,867.49, 5,331.54 and 2,538.91

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Solution

The fourth proportional to 3,867.49, 5,331.54 and 2,538.91 is: 3,500.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.49 : 5,331.54 = 2,538.91 : x
  2. Step 2: Convert to fraction form
    3,867.49/5,331.54 = 2,538.91/x
  3. Step 3: Cross multiply
    3,867.49x = 5,331.54 × 2,538.91
  4. Step 4: Simplify right side
    3,867.49x = 13,536,300.22
  5. Step 5: Solve for x
    x = 13,536,300.22/3,867.49
  6. Step 6: Final answer
    x = 3,500.02

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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.