Home / 4,877.67-6,729.43-2,780.58

Finding the Fourth Proportional to 4,877.67, 6,729.43 and 2,780.58

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Solution

The fourth proportional to 4,877.67, 6,729.43 and 2,780.58 is: 3,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.67 : 6,729.43 = 2,780.58 : x
  2. Step 2: Convert to fraction form
    4,877.67/6,729.43 = 2,780.58/x
  3. Step 3: Cross multiply
    4,877.67x = 6,729.43 × 2,780.58
  4. Step 4: Simplify right side
    4,877.67x = 18,711,718.47
  5. Step 5: Solve for x
    x = 18,711,718.47/4,877.67
  6. Step 6: Final answer
    x = 3,836.20

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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.