Home / 5,320.81-7,341.60-3,082.56

Finding the Fourth Proportional to 5,320.81, 7,341.60 and 3,082.56

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Solution

The fourth proportional to 5,320.81, 7,341.60 and 3,082.56 is: 4,253.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.81 : 7,341.60 = 3,082.56 : x
  2. Step 2: Convert to fraction form
    5,320.81/7,341.60 = 3,082.56/x
  3. Step 3: Cross multiply
    5,320.81x = 7,341.60 × 3,082.56
  4. Step 4: Simplify right side
    5,320.81x = 22,630,906.52
  5. Step 5: Solve for x
    x = 22,630,906.52/5,320.81
  6. Step 6: Final answer
    x = 4,253.28

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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.