Home / 1,774.40-2,446.29-1,242.57

Finding the Fourth Proportional to 1,774.40, 2,446.29 and 1,242.57

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Solution

The fourth proportional to 1,774.40, 2,446.29 and 1,242.57 is: 1,713.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.40 : 2,446.29 = 1,242.57 : x
  2. Step 2: Convert to fraction form
    1,774.40/2,446.29 = 1,242.57/x
  3. Step 3: Cross multiply
    1,774.40x = 2,446.29 × 1,242.57
  4. Step 4: Simplify right side
    1,774.40x = 3,039,686.57
  5. Step 5: Solve for x
    x = 3,039,686.57/1,774.40
  6. Step 6: Final answer
    x = 1,713.08

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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.