Home / 4,984.64-6,877.68-2,888.72

Finding the Fourth Proportional to 4,984.64, 6,877.68 and 2,888.72

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Solution

The fourth proportional to 4,984.64, 6,877.68 and 2,888.72 is: 3,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.64 : 6,877.68 = 2,888.72 : x
  2. Step 2: Convert to fraction form
    4,984.64/6,877.68 = 2,888.72/x
  3. Step 3: Cross multiply
    4,984.64x = 6,877.68 × 2,888.72
  4. Step 4: Simplify right side
    4,984.64x = 19,867,691.77
  5. Step 5: Solve for x
    x = 19,867,691.77/4,984.64
  6. Step 6: Final answer
    x = 3,985.78

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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.