Home / 6,381.57-8,806.56-3,587.07

Finding the Fourth Proportional to 6,381.57, 8,806.56 and 3,587.07

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Solution

The fourth proportional to 6,381.57, 8,806.56 and 3,587.07 is: 4,950.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.57 : 8,806.56 = 3,587.07 : x
  2. Step 2: Convert to fraction form
    6,381.57/8,806.56 = 3,587.07/x
  3. Step 3: Cross multiply
    6,381.57x = 8,806.56 × 3,587.07
  4. Step 4: Simplify right side
    6,381.57x = 31,589,747.18
  5. Step 5: Solve for x
    x = 31,589,747.18/6,381.57
  6. Step 6: Final answer
    x = 4,950.15

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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.