Home / 5,389.40-8,080.50-4,350.68

Finding the Fourth Proportional to 5,389.40, 8,080.50 and 4,350.68

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Solution

The fourth proportional to 5,389.40, 8,080.50 and 4,350.68 is: 6,523.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.40 : 8,080.50 = 4,350.68 : x
  2. Step 2: Convert to fraction form
    5,389.40/8,080.50 = 4,350.68/x
  3. Step 3: Cross multiply
    5,389.40x = 8,080.50 × 4,350.68
  4. Step 4: Simplify right side
    5,389.40x = 35,155,669.74
  5. Step 5: Solve for x
    x = 35,155,669.74/5,389.40
  6. Step 6: Final answer
    x = 6,523.11

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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.