Home / 4,877.42-6,730.98-2,781.50

Finding the Fourth Proportional to 4,877.42, 6,730.98 and 2,781.50

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Solution

The fourth proportional to 4,877.42, 6,730.98 and 2,781.50 is: 3,838.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.42 : 6,730.98 = 2,781.50 : x
  2. Step 2: Convert to fraction form
    4,877.42/6,730.98 = 2,781.50/x
  3. Step 3: Cross multiply
    4,877.42x = 6,730.98 × 2,781.50
  4. Step 4: Simplify right side
    4,877.42x = 18,722,220.87
  5. Step 5: Solve for x
    x = 18,722,220.87/4,877.42
  6. Step 6: Final answer
    x = 3,838.55

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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.