Home / 7,690.30-10,612.37-4,332.85

Finding the Fourth Proportional to 7,690.30, 10,612.37 and 4,332.85

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Solution

The fourth proportional to 7,690.30, 10,612.37 and 4,332.85 is: 5,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.30 : 10,612.37 = 4,332.85 : x
  2. Step 2: Convert to fraction form
    7,690.30/10,612.37 = 4,332.85/x
  3. Step 3: Cross multiply
    7,690.30x = 10,612.37 × 4,332.85
  4. Step 4: Simplify right side
    7,690.30x = 45,981,807.35
  5. Step 5: Solve for x
    x = 45,981,807.35/7,690.30
  6. Step 6: Final answer
    x = 5,979.20

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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.