Home / 1,224.52-1,845.95-1,143.05

Finding the Fourth Proportional to 1,224.52, 1,845.95 and 1,143.05

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Solution

The fourth proportional to 1,224.52, 1,845.95 and 1,143.05 is: 1,723.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.52 : 1,845.95 = 1,143.05 : x
  2. Step 2: Convert to fraction form
    1,224.52/1,845.95 = 1,143.05/x
  3. Step 3: Cross multiply
    1,224.52x = 1,845.95 × 1,143.05
  4. Step 4: Simplify right side
    1,224.52x = 2,110,013.15
  5. Step 5: Solve for x
    x = 2,110,013.15/1,224.52
  6. Step 6: Final answer
    x = 1,723.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.