Home / 2,931.57-4,387.80-1,595.35

Finding the Fourth Proportional to 2,931.57, 4,387.80 and 1,595.35

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Solution

The fourth proportional to 2,931.57, 4,387.80 and 1,595.35 is: 2,387.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.57 : 4,387.80 = 1,595.35 : x
  2. Step 2: Convert to fraction form
    2,931.57/4,387.80 = 1,595.35/x
  3. Step 3: Cross multiply
    2,931.57x = 4,387.80 × 1,595.35
  4. Step 4: Simplify right side
    2,931.57x = 7,000,076.73
  5. Step 5: Solve for x
    x = 7,000,076.73/2,931.57
  6. Step 6: Final answer
    x = 2,387.83

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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.