Home / 2,397.21-3,591.76-1,520.70

Finding the Fourth Proportional to 2,397.21, 3,591.76 and 1,520.70

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Solution

The fourth proportional to 2,397.21, 3,591.76 and 1,520.70 is: 2,278.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,397.21 : 3,591.76 = 1,520.70 : x
  2. Step 2: Convert to fraction form
    2,397.21/3,591.76 = 1,520.70/x
  3. Step 3: Cross multiply
    2,397.21x = 3,591.76 × 1,520.70
  4. Step 4: Simplify right side
    2,397.21x = 5,461,985.63
  5. Step 5: Solve for x
    x = 5,461,985.63/2,397.21
  6. Step 6: Final answer
    x = 2,278.48

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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.