Home / 5,721.23-8,581.28-1,561.61

Finding the Fourth Proportional to 5,721.23, 8,581.28 and 1,561.61

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Solution

The fourth proportional to 5,721.23, 8,581.28 and 1,561.61 is: 2,342.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.23 : 8,581.28 = 1,561.61 : x
  2. Step 2: Convert to fraction form
    5,721.23/8,581.28 = 1,561.61/x
  3. Step 3: Cross multiply
    5,721.23x = 8,581.28 × 1,561.61
  4. Step 4: Simplify right side
    5,721.23x = 13,400,626.31
  5. Step 5: Solve for x
    x = 13,400,626.31/5,721.23
  6. Step 6: Final answer
    x = 2,342.26

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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.