Home / 2,538.79-3,503.66-1,419.72

Finding the Fourth Proportional to 2,538.79, 3,503.66 and 1,419.72

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Solution

The fourth proportional to 2,538.79, 3,503.66 and 1,419.72 is: 1,959.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,538.79 : 3,503.66 = 1,419.72 : x
  2. Step 2: Convert to fraction form
    2,538.79/3,503.66 = 1,419.72/x
  3. Step 3: Cross multiply
    2,538.79x = 3,503.66 × 1,419.72
  4. Step 4: Simplify right side
    2,538.79x = 4,974,216.18
  5. Step 5: Solve for x
    x = 4,974,216.18/2,538.79
  6. Step 6: Final answer
    x = 1,959.29

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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.