Home / 1,356.55-2,035.19-948.31

Finding the Fourth Proportional to 1,356.55, 2,035.19 and 948.31

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Solution

The fourth proportional to 1,356.55, 2,035.19 and 948.31 is: 1,422.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.55 : 2,035.19 = 948.31 : x
  2. Step 2: Convert to fraction form
    1,356.55/2,035.19 = 948.31/x
  3. Step 3: Cross multiply
    1,356.55x = 2,035.19 × 948.31
  4. Step 4: Simplify right side
    1,356.55x = 1,929,988.31
  5. Step 5: Solve for x
    x = 1,929,988.31/1,356.55
  6. Step 6: Final answer
    x = 1,422.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.