Home / 2,045.30-2,822.85-1,248.66

Finding the Fourth Proportional to 2,045.30, 2,822.85 and 1,248.66

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Solution

The fourth proportional to 2,045.30, 2,822.85 and 1,248.66 is: 1,723.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.30 : 2,822.85 = 1,248.66 : x
  2. Step 2: Convert to fraction form
    2,045.30/2,822.85 = 1,248.66/x
  3. Step 3: Cross multiply
    2,045.30x = 2,822.85 × 1,248.66
  4. Step 4: Simplify right side
    2,045.30x = 3,524,779.88
  5. Step 5: Solve for x
    x = 3,524,779.88/2,045.30
  6. Step 6: Final answer
    x = 1,723.36

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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.