Home / 5,701.92-7,870.40-3,708.96

Finding the Fourth Proportional to 5,701.92, 7,870.40 and 3,708.96

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Solution

The fourth proportional to 5,701.92, 7,870.40 and 3,708.96 is: 5,119.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,701.92 : 7,870.40 = 3,708.96 : x
  2. Step 2: Convert to fraction form
    5,701.92/7,870.40 = 3,708.96/x
  3. Step 3: Cross multiply
    5,701.92x = 7,870.40 × 3,708.96
  4. Step 4: Simplify right side
    5,701.92x = 29,190,998.78
  5. Step 5: Solve for x
    x = 29,190,998.78/5,701.92
  6. Step 6: Final answer
    x = 5,119.50

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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.