Home / 1,240.39-1,850.45-1,152.01

Finding the Fourth Proportional to 1,240.39, 1,850.45 and 1,152.01

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Solution

The fourth proportional to 1,240.39, 1,850.45 and 1,152.01 is: 1,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240.39 : 1,850.45 = 1,152.01 : x
  2. Step 2: Convert to fraction form
    1,240.39/1,850.45 = 1,152.01/x
  3. Step 3: Cross multiply
    1,240.39x = 1,850.45 × 1,152.01
  4. Step 4: Simplify right side
    1,240.39x = 2,131,736.90
  5. Step 5: Solve for x
    x = 2,131,736.90/1,240.39
  6. Step 6: Final answer
    x = 1,718.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.