Home / 2,655.40-3,974.46-1,875.88

Finding the Fourth Proportional to 2,655.40, 3,974.46 and 1,875.88

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Solution

The fourth proportional to 2,655.40, 3,974.46 and 1,875.88 is: 2,807.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.40 : 3,974.46 = 1,875.88 : x
  2. Step 2: Convert to fraction form
    2,655.40/3,974.46 = 1,875.88/x
  3. Step 3: Cross multiply
    2,655.40x = 3,974.46 × 1,875.88
  4. Step 4: Simplify right side
    2,655.40x = 7,455,610.02
  5. Step 5: Solve for x
    x = 7,455,610.02/2,655.40
  6. Step 6: Final answer
    x = 2,807.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.