Home / 4,878.68-6,732.77-2,989.66

Finding the Fourth Proportional to 4,878.68, 6,732.77 and 2,989.66

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Solution

The fourth proportional to 4,878.68, 6,732.77 and 2,989.66 is: 4,125.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.68 : 6,732.77 = 2,989.66 : x
  2. Step 2: Convert to fraction form
    4,878.68/6,732.77 = 2,989.66/x
  3. Step 3: Cross multiply
    4,878.68x = 6,732.77 × 2,989.66
  4. Step 4: Simplify right side
    4,878.68x = 20,128,690.82
  5. Step 5: Solve for x
    x = 20,128,690.82/4,878.68
  6. Step 6: Final answer
    x = 4,125.85

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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.