Home / 5,428.16-8,122.80-4,700.24

Finding the Fourth Proportional to 5,428.16, 8,122.80 and 4,700.24

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Solution

The fourth proportional to 5,428.16, 8,122.80 and 4,700.24 is: 7,033.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.16 : 8,122.80 = 4,700.24 : x
  2. Step 2: Convert to fraction form
    5,428.16/8,122.80 = 4,700.24/x
  3. Step 3: Cross multiply
    5,428.16x = 8,122.80 × 4,700.24
  4. Step 4: Simplify right side
    5,428.16x = 38,179,109.47
  5. Step 5: Solve for x
    x = 38,179,109.47/5,428.16
  6. Step 6: Final answer
    x = 7,033.53

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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.