Home / 7,117.71-10,674.73-2,118.91

Finding the Fourth Proportional to 7,117.71, 10,674.73 and 2,118.91

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Solution

The fourth proportional to 7,117.71, 10,674.73 and 2,118.91 is: 3,177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.71 : 10,674.73 = 2,118.91 : x
  2. Step 2: Convert to fraction form
    7,117.71/10,674.73 = 2,118.91/x
  3. Step 3: Cross multiply
    7,117.71x = 10,674.73 × 2,118.91
  4. Step 4: Simplify right side
    7,117.71x = 22,618,781.55
  5. Step 5: Solve for x
    x = 22,618,781.55/7,117.71
  6. Step 6: Final answer
    x = 3,177.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.