Home / 1,356.32-2,031.16-1,224.84

Finding the Fourth Proportional to 1,356.32, 2,031.16 and 1,224.84

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Solution

The fourth proportional to 1,356.32, 2,031.16 and 1,224.84 is: 1,834.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.32 : 2,031.16 = 1,224.84 : x
  2. Step 2: Convert to fraction form
    1,356.32/2,031.16 = 1,224.84/x
  3. Step 3: Cross multiply
    1,356.32x = 2,031.16 × 1,224.84
  4. Step 4: Simplify right side
    1,356.32x = 2,487,839.89
  5. Step 5: Solve for x
    x = 2,487,839.89/1,356.32
  6. Step 6: Final answer
    x = 1,834.26

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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.