Home / 2,877.45-3,970.94-2,248.71

Finding the Fourth Proportional to 2,877.45, 3,970.94 and 2,248.71

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Solution

The fourth proportional to 2,877.45, 3,970.94 and 2,248.71 is: 3,103.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.45 : 3,970.94 = 2,248.71 : x
  2. Step 2: Convert to fraction form
    2,877.45/3,970.94 = 2,248.71/x
  3. Step 3: Cross multiply
    2,877.45x = 3,970.94 × 2,248.71
  4. Step 4: Simplify right side
    2,877.45x = 8,929,492.49
  5. Step 5: Solve for x
    x = 8,929,492.49/2,877.45
  6. Step 6: Final answer
    x = 3,103.27

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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.