Home / 2,877.30-3,973.28-1,816.95

Finding the Fourth Proportional to 2,877.30, 3,973.28 and 1,816.95

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Solution

The fourth proportional to 2,877.30, 3,973.28 and 1,816.95 is: 2,509.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.30 : 3,973.28 = 1,816.95 : x
  2. Step 2: Convert to fraction form
    2,877.30/3,973.28 = 1,816.95/x
  3. Step 3: Cross multiply
    2,877.30x = 3,973.28 × 1,816.95
  4. Step 4: Simplify right side
    2,877.30x = 7,219,251.10
  5. Step 5: Solve for x
    x = 7,219,251.10/2,877.30
  6. Step 6: Final answer
    x = 2,509.04

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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.