Home / 5,681.28-8,522.87-2,561.21

Finding the Fourth Proportional to 5,681.28, 8,522.87 and 2,561.21

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Solution

The fourth proportional to 5,681.28, 8,522.87 and 2,561.21 is: 3,842.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.28 : 8,522.87 = 2,561.21 : x
  2. Step 2: Convert to fraction form
    5,681.28/8,522.87 = 2,561.21/x
  3. Step 3: Cross multiply
    5,681.28x = 8,522.87 × 2,561.21
  4. Step 4: Simplify right side
    5,681.28x = 21,828,838.83
  5. Step 5: Solve for x
    x = 21,828,838.83/5,681.28
  6. Step 6: Final answer
    x = 3,842.24

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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.