Home / 6,381.40-8,806.55-3,549.57

Finding the Fourth Proportional to 6,381.40, 8,806.55 and 3,549.57

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Solution

The fourth proportional to 6,381.40, 8,806.55 and 3,549.57 is: 4,898.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.40 : 8,806.55 = 3,549.57 : x
  2. Step 2: Convert to fraction form
    6,381.40/8,806.55 = 3,549.57/x
  3. Step 3: Cross multiply
    6,381.40x = 8,806.55 × 3,549.57
  4. Step 4: Simplify right side
    6,381.40x = 31,259,465.68
  5. Step 5: Solve for x
    x = 31,259,465.68/6,381.40
  6. Step 6: Final answer
    x = 4,898.53

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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.