Home / 1,418.32-2,127.16-1,230.16

Finding the Fourth Proportional to 1,418.32, 2,127.16 and 1,230.16

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Solution

The fourth proportional to 1,418.32, 2,127.16 and 1,230.16 is: 1,844.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.32 : 2,127.16 = 1,230.16 : x
  2. Step 2: Convert to fraction form
    1,418.32/2,127.16 = 1,230.16/x
  3. Step 3: Cross multiply
    1,418.32x = 2,127.16 × 1,230.16
  4. Step 4: Simplify right side
    1,418.32x = 2,616,747.15
  5. Step 5: Solve for x
    x = 2,616,747.15/1,418.32
  6. Step 6: Final answer
    x = 1,844.96

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1.5x scale

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.