Home / 5,781.34-8,672.60-1,621.36

Finding the Fourth Proportional to 5,781.34, 8,672.60 and 1,621.36

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Solution

The fourth proportional to 5,781.34, 8,672.60 and 1,621.36 is: 2,432.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,781.34 : 8,672.60 = 1,621.36 : x
  2. Step 2: Convert to fraction form
    5,781.34/8,672.60 = 1,621.36/x
  3. Step 3: Cross multiply
    5,781.34x = 8,672.60 × 1,621.36
  4. Step 4: Simplify right side
    5,781.34x = 14,061,406.74
  5. Step 5: Solve for x
    x = 14,061,406.74/5,781.34
  6. Step 6: Final answer
    x = 2,432.21

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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.