Home / 4,588.17-6,878.20-1,989.69

Finding the Fourth Proportional to 4,588.17, 6,878.20 and 1,989.69

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Solution

The fourth proportional to 4,588.17, 6,878.20 and 1,989.69 is: 2,982.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,588.17 : 6,878.20 = 1,989.69 : x
  2. Step 2: Convert to fraction form
    4,588.17/6,878.20 = 1,989.69/x
  3. Step 3: Cross multiply
    4,588.17x = 6,878.20 × 1,989.69
  4. Step 4: Simplify right side
    4,588.17x = 13,685,480.78
  5. Step 5: Solve for x
    x = 13,685,480.78/4,588.17
  6. Step 6: Final answer
    x = 2,982.78

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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.