Home / 5,728.34-7,882.20-5,557.16

Finding the Fourth Proportional to 5,728.34, 7,882.20 and 5,557.16

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Solution

The fourth proportional to 5,728.34, 7,882.20 and 5,557.16 is: 7,646.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.34 : 7,882.20 = 5,557.16 : x
  2. Step 2: Convert to fraction form
    5,728.34/7,882.20 = 5,557.16/x
  3. Step 3: Cross multiply
    5,728.34x = 7,882.20 × 5,557.16
  4. Step 4: Simplify right side
    5,728.34x = 43,802,646.55
  5. Step 5: Solve for x
    x = 43,802,646.55/5,728.34
  6. Step 6: Final answer
    x = 7,646.66

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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.