Home / 7,708.50-10,637.76-4,171.71

Finding the Fourth Proportional to 7,708.50, 10,637.76 and 4,171.71

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Solution

The fourth proportional to 7,708.50, 10,637.76 and 4,171.71 is: 5,756.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.50 : 10,637.76 = 4,171.71 : x
  2. Step 2: Convert to fraction form
    7,708.50/10,637.76 = 4,171.71/x
  3. Step 3: Cross multiply
    7,708.50x = 10,637.76 × 4,171.71
  4. Step 4: Simplify right side
    7,708.50x = 44,377,649.77
  5. Step 5: Solve for x
    x = 44,377,649.77/7,708.50
  6. Step 6: Final answer
    x = 5,756.98

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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.