Home / 3,731.34-5,591.97-1,421.58

Finding the Fourth Proportional to 3,731.34, 5,591.97 and 1,421.58

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Solution

The fourth proportional to 3,731.34, 5,591.97 and 1,421.58 is: 2,130.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.34 : 5,591.97 = 1,421.58 : x
  2. Step 2: Convert to fraction form
    3,731.34/5,591.97 = 1,421.58/x
  3. Step 3: Cross multiply
    3,731.34x = 5,591.97 × 1,421.58
  4. Step 4: Simplify right side
    3,731.34x = 7,949,432.71
  5. Step 5: Solve for x
    x = 7,949,432.71/3,731.34
  6. Step 6: Final answer
    x = 2,130.45

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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.