Home / 4,877.13-6,727.69-2,989.62

Finding the Fourth Proportional to 4,877.13, 6,727.69 and 2,989.62

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Solution

The fourth proportional to 4,877.13, 6,727.69 and 2,989.62 is: 4,123.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.13 : 6,727.69 = 2,989.62 : x
  2. Step 2: Convert to fraction form
    4,877.13/6,727.69 = 2,989.62/x
  3. Step 3: Cross multiply
    4,877.13x = 6,727.69 × 2,989.62
  4. Step 4: Simplify right side
    4,877.13x = 20,113,236.58
  5. Step 5: Solve for x
    x = 20,113,236.58/4,877.13
  6. Step 6: Final answer
    x = 4,123.99

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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.