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Finding the Fourth Proportional to 7,230.54, 9,979.98 and 4,718.92

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Solution

The fourth proportional to 7,230.54, 9,979.98 and 4,718.92 is: 6,513.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230.54 : 9,979.98 = 4,718.92 : x
  2. Step 2: Convert to fraction form
    7,230.54/9,979.98 = 4,718.92/x
  3. Step 3: Cross multiply
    7,230.54x = 9,979.98 × 4,718.92
  4. Step 4: Simplify right side
    7,230.54x = 47,094,727.22
  5. Step 5: Solve for x
    x = 47,094,727.22/7,230.54
  6. Step 6: Final answer
    x = 6,513.31

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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.