Home / 5,373.38-7,420.89-3,699.11

Finding the Fourth Proportional to 5,373.38, 7,420.89 and 3,699.11

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Solution

The fourth proportional to 5,373.38, 7,420.89 and 3,699.11 is: 5,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,373.38 : 7,420.89 = 3,699.11 : x
  2. Step 2: Convert to fraction form
    5,373.38/7,420.89 = 3,699.11/x
  3. Step 3: Cross multiply
    5,373.38x = 7,420.89 × 3,699.11
  4. Step 4: Simplify right side
    5,373.38x = 27,450,706.96
  5. Step 5: Solve for x
    x = 27,450,706.96/5,373.38
  6. Step 6: Final answer
    x = 5,108.65

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1.5x scale

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.