Home / 2,270.59-3,133.33-1,387.87

Finding the Fourth Proportional to 2,270.59, 3,133.33 and 1,387.87

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Solution

The fourth proportional to 2,270.59, 3,133.33 and 1,387.87 is: 1,915.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.59 : 3,133.33 = 1,387.87 : x
  2. Step 2: Convert to fraction form
    2,270.59/3,133.33 = 1,387.87/x
  3. Step 3: Cross multiply
    2,270.59x = 3,133.33 × 1,387.87
  4. Step 4: Simplify right side
    2,270.59x = 4,348,654.71
  5. Step 5: Solve for x
    x = 4,348,654.71/2,270.59
  6. Step 6: Final answer
    x = 1,915.21

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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.