Home / 5,420.16-8,082.90-4,822.86

Finding the Fourth Proportional to 5,420.16, 8,082.90 and 4,822.86

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Solution

The fourth proportional to 5,420.16, 8,082.90 and 4,822.86 is: 7,192.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.16 : 8,082.90 = 4,822.86 : x
  2. Step 2: Convert to fraction form
    5,420.16/8,082.90 = 4,822.86/x
  3. Step 3: Cross multiply
    5,420.16x = 8,082.90 × 4,822.86
  4. Step 4: Simplify right side
    5,420.16x = 38,982,695.09
  5. Step 5: Solve for x
    x = 38,982,695.09/5,420.16
  6. Step 6: Final answer
    x = 7,192.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.