Home / 1,948.60-2,689.05-1,202.26

Finding the Fourth Proportional to 1,948.60, 2,689.05 and 1,202.26

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Solution

The fourth proportional to 1,948.60, 2,689.05 and 1,202.26 is: 1,659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.60 : 2,689.05 = 1,202.26 : x
  2. Step 2: Convert to fraction form
    1,948.60/2,689.05 = 1,202.26/x
  3. Step 3: Cross multiply
    1,948.60x = 2,689.05 × 1,202.26
  4. Step 4: Simplify right side
    1,948.60x = 3,232,937.25
  5. Step 5: Solve for x
    x = 3,232,937.25/1,948.60
  6. Step 6: Final answer
    x = 1,659.11

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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.