Home / 2,239.18-3,091.20-1,343.42

Finding the Fourth Proportional to 2,239.18, 3,091.20 and 1,343.42

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Solution

The fourth proportional to 2,239.18, 3,091.20 and 1,343.42 is: 1,854.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.18 : 3,091.20 = 1,343.42 : x
  2. Step 2: Convert to fraction form
    2,239.18/3,091.20 = 1,343.42/x
  3. Step 3: Cross multiply
    2,239.18x = 3,091.20 × 1,343.42
  4. Step 4: Simplify right side
    2,239.18x = 4,152,779.90
  5. Step 5: Solve for x
    x = 4,152,779.90/2,239.18
  6. Step 6: Final answer
    x = 1,854.60

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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.