Home / 1,143.48-1,577.20-968.07

Finding the Fourth Proportional to 1,143.48, 1,577.20 and 968.07

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Solution

The fourth proportional to 1,143.48, 1,577.20 and 968.07 is: 1,335.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143.48 : 1,577.20 = 968.07 : x
  2. Step 2: Convert to fraction form
    1,143.48/1,577.20 = 968.07/x
  3. Step 3: Cross multiply
    1,143.48x = 1,577.20 × 968.07
  4. Step 4: Simplify right side
    1,143.48x = 1,526,833.72
  5. Step 5: Solve for x
    x = 1,526,833.72/1,143.48
  6. Step 6: Final answer
    x = 1,335.25

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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.