Home / 5,140.16-7,080.72-4,876.64

Finding the Fourth Proportional to 5,140.16, 7,080.72 and 4,876.64

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Solution

The fourth proportional to 5,140.16, 7,080.72 and 4,876.64 is: 6,717.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.16 : 7,080.72 = 4,876.64 : x
  2. Step 2: Convert to fraction form
    5,140.16/7,080.72 = 4,876.64/x
  3. Step 3: Cross multiply
    5,140.16x = 7,080.72 × 4,876.64
  4. Step 4: Simplify right side
    5,140.16x = 34,530,122.38
  5. Step 5: Solve for x
    x = 34,530,122.38/5,140.16
  6. Step 6: Final answer
    x = 6,717.71

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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.