Home / 7,341.57-10,139.55-4,979.61

Finding the Fourth Proportional to 7,341.57, 10,139.55 and 4,979.61

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Solution

The fourth proportional to 7,341.57, 10,139.55 and 4,979.61 is: 6,877.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,341.57 : 10,139.55 = 4,979.61 : x
  2. Step 2: Convert to fraction form
    7,341.57/10,139.55 = 4,979.61/x
  3. Step 3: Cross multiply
    7,341.57x = 10,139.55 × 4,979.61
  4. Step 4: Simplify right side
    7,341.57x = 50,491,004.58
  5. Step 5: Solve for x
    x = 50,491,004.58/7,341.57
  6. Step 6: Final answer
    x = 6,877.41

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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.