Home / 7,165.78-9,889.62-4,332.82

Finding the Fourth Proportional to 7,165.78, 9,889.62 and 4,332.82

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Solution

The fourth proportional to 7,165.78, 9,889.62 and 4,332.82 is: 5,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.78 : 9,889.62 = 4,332.82 : x
  2. Step 2: Convert to fraction form
    7,165.78/9,889.62 = 4,332.82/x
  3. Step 3: Cross multiply
    7,165.78x = 9,889.62 × 4,332.82
  4. Step 4: Simplify right side
    7,165.78x = 42,849,943.33
  5. Step 5: Solve for x
    x = 42,849,943.33/7,165.78
  6. Step 6: Final answer
    x = 5,979.80

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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.