Home / 2,191.12-3,024.84-1,395.24

Finding the Fourth Proportional to 2,191.12, 3,024.84 and 1,395.24

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Solution

The fourth proportional to 2,191.12, 3,024.84 and 1,395.24 is: 1,926.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.12 : 3,024.84 = 1,395.24 : x
  2. Step 2: Convert to fraction form
    2,191.12/3,024.84 = 1,395.24/x
  3. Step 3: Cross multiply
    2,191.12x = 3,024.84 × 1,395.24
  4. Step 4: Simplify right side
    2,191.12x = 4,220,377.76
  5. Step 5: Solve for x
    x = 4,220,377.76/2,191.12
  6. Step 6: Final answer
    x = 1,926.13

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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.