Home / 2,835.80-4,253.52-1,275.92

Finding the Fourth Proportional to 2,835.80, 4,253.52 and 1,275.92

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Solution

The fourth proportional to 2,835.80, 4,253.52 and 1,275.92 is: 1,913.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.80 : 4,253.52 = 1,275.92 : x
  2. Step 2: Convert to fraction form
    2,835.80/4,253.52 = 1,275.92/x
  3. Step 3: Cross multiply
    2,835.80x = 4,253.52 × 1,275.92
  4. Step 4: Simplify right side
    2,835.80x = 5,427,151.24
  5. Step 5: Solve for x
    x = 5,427,151.24/2,835.80
  6. Step 6: Final answer
    x = 1,913.80

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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.