Home / 6,280.89-8,660.57-4,489.17

Finding the Fourth Proportional to 6,280.89, 8,660.57 and 4,489.17

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Solution

The fourth proportional to 6,280.89, 8,660.57 and 4,489.17 is: 6,190.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.89 : 8,660.57 = 4,489.17 : x
  2. Step 2: Convert to fraction form
    6,280.89/8,660.57 = 4,489.17/x
  3. Step 3: Cross multiply
    6,280.89x = 8,660.57 × 4,489.17
  4. Step 4: Simplify right side
    6,280.89x = 38,878,748.58
  5. Step 5: Solve for x
    x = 38,878,748.58/6,280.89
  6. Step 6: Final answer
    x = 6,190.01

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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.