Home / 5,711.80-8,567.70-3,109.28

Finding the Fourth Proportional to 5,711.80, 8,567.70 and 3,109.28

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Solution

The fourth proportional to 5,711.80, 8,567.70 and 3,109.28 is: 4,663.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.80 : 8,567.70 = 3,109.28 : x
  2. Step 2: Convert to fraction form
    5,711.80/8,567.70 = 3,109.28/x
  3. Step 3: Cross multiply
    5,711.80x = 8,567.70 × 3,109.28
  4. Step 4: Simplify right side
    5,711.80x = 26,639,378.26
  5. Step 5: Solve for x
    x = 26,639,378.26/5,711.80
  6. Step 6: Final answer
    x = 4,663.92

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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.