Home / 5,091.78-7,031.79-4,541.70

Finding the Fourth Proportional to 5,091.78, 7,031.79 and 4,541.70

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Solution

The fourth proportional to 5,091.78, 7,031.79 and 4,541.70 is: 6,272.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.78 : 7,031.79 = 4,541.70 : x
  2. Step 2: Convert to fraction form
    5,091.78/7,031.79 = 4,541.70/x
  3. Step 3: Cross multiply
    5,091.78x = 7,031.79 × 4,541.70
  4. Step 4: Simplify right side
    5,091.78x = 31,936,280.64
  5. Step 5: Solve for x
    x = 31,936,280.64/5,091.78
  6. Step 6: Final answer
    x = 6,272.13

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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.