Home / 5,135.13-7,702.75-1,803.46

Finding the Fourth Proportional to 5,135.13, 7,702.75 and 1,803.46

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Solution

The fourth proportional to 5,135.13, 7,702.75 and 1,803.46 is: 2,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.13 : 7,702.75 = 1,803.46 : x
  2. Step 2: Convert to fraction form
    5,135.13/7,702.75 = 1,803.46/x
  3. Step 3: Cross multiply
    5,135.13x = 7,702.75 × 1,803.46
  4. Step 4: Simplify right side
    5,135.13x = 13,891,553.98
  5. Step 5: Solve for x
    x = 13,891,553.98/5,135.13
  6. Step 6: Final answer
    x = 2,705.20

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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.