Home / 5,378.36-7,423.33-2,989.16

Finding the Fourth Proportional to 5,378.36, 7,423.33 and 2,989.16

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Solution

The fourth proportional to 5,378.36, 7,423.33 and 2,989.16 is: 4,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.36 : 7,423.33 = 2,989.16 : x
  2. Step 2: Convert to fraction form
    5,378.36/7,423.33 = 2,989.16/x
  3. Step 3: Cross multiply
    5,378.36x = 7,423.33 × 2,989.16
  4. Step 4: Simplify right side
    5,378.36x = 22,189,487.72
  5. Step 5: Solve for x
    x = 22,189,487.72/5,378.36
  6. Step 6: Final answer
    x = 4,125.70

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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.