Home / 5,270.31-7,905.47-1,807.59

Finding the Fourth Proportional to 5,270.31, 7,905.47 and 1,807.59

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Solution

The fourth proportional to 5,270.31, 7,905.47 and 1,807.59 is: 2,711.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.31 : 7,905.47 = 1,807.59 : x
  2. Step 2: Convert to fraction form
    5,270.31/7,905.47 = 1,807.59/x
  3. Step 3: Cross multiply
    5,270.31x = 7,905.47 × 1,807.59
  4. Step 4: Simplify right side
    5,270.31x = 14,289,839.48
  5. Step 5: Solve for x
    x = 14,289,839.48/5,270.31
  6. Step 6: Final answer
    x = 2,711.39

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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.