Home / 7,339.08-10,129.14-4,979.64

Finding the Fourth Proportional to 7,339.08, 10,129.14 and 4,979.64

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Solution

The fourth proportional to 7,339.08, 10,129.14 and 4,979.64 is: 6,872.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.08 : 10,129.14 = 4,979.64 : x
  2. Step 2: Convert to fraction form
    7,339.08/10,129.14 = 4,979.64/x
  3. Step 3: Cross multiply
    7,339.08x = 10,129.14 × 4,979.64
  4. Step 4: Simplify right side
    7,339.08x = 50,439,470.71
  5. Step 5: Solve for x
    x = 50,439,470.71/7,339.08
  6. Step 6: Final answer
    x = 6,872.72

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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.