Home / 5,312.28-7,324.38-4,130.76

Finding the Fourth Proportional to 5,312.28, 7,324.38 and 4,130.76

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Solution

The fourth proportional to 5,312.28, 7,324.38 and 4,130.76 is: 5,695.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.28 : 7,324.38 = 4,130.76 : x
  2. Step 2: Convert to fraction form
    5,312.28/7,324.38 = 4,130.76/x
  3. Step 3: Cross multiply
    5,312.28x = 7,324.38 × 4,130.76
  4. Step 4: Simplify right side
    5,312.28x = 30,255,255.93
  5. Step 5: Solve for x
    x = 30,255,255.93/5,312.28
  6. Step 6: Final answer
    x = 5,695.34

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Half scale
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Double scale
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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.