Home / 5,708.61-7,876.89-3,190.62

Finding the Fourth Proportional to 5,708.61, 7,876.89 and 3,190.62

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Solution

The fourth proportional to 5,708.61, 7,876.89 and 3,190.62 is: 4,402.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,708.61 : 7,876.89 = 3,190.62 : x
  2. Step 2: Convert to fraction form
    5,708.61/7,876.89 = 3,190.62/x
  3. Step 3: Cross multiply
    5,708.61x = 7,876.89 × 3,190.62
  4. Step 4: Simplify right side
    5,708.61x = 25,132,162.77
  5. Step 5: Solve for x
    x = 25,132,162.77/5,708.61
  6. Step 6: Final answer
    x = 4,402.50

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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.