Home / 5,135.05-7,702.59-1,437.31

Finding the Fourth Proportional to 5,135.05, 7,702.59 and 1,437.31

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Solution

The fourth proportional to 5,135.05, 7,702.59 and 1,437.31 is: 2,155.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.05 : 7,702.59 = 1,437.31 : x
  2. Step 2: Convert to fraction form
    5,135.05/7,702.59 = 1,437.31/x
  3. Step 3: Cross multiply
    5,135.05x = 7,702.59 × 1,437.31
  4. Step 4: Simplify right side
    5,135.05x = 11,071,002.45
  5. Step 5: Solve for x
    x = 11,071,002.45/5,135.05
  6. Step 6: Final answer
    x = 2,155.97

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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.