Home / 1,439.74-2,159.27-1,218.34

Finding the Fourth Proportional to 1,439.74, 2,159.27 and 1,218.34

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Solution

The fourth proportional to 1,439.74, 2,159.27 and 1,218.34 is: 1,827.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.74 : 2,159.27 = 1,218.34 : x
  2. Step 2: Convert to fraction form
    1,439.74/2,159.27 = 1,218.34/x
  3. Step 3: Cross multiply
    1,439.74x = 2,159.27 × 1,218.34
  4. Step 4: Simplify right side
    1,439.74x = 2,630,708.12
  5. Step 5: Solve for x
    x = 2,630,708.12/1,439.74
  6. Step 6: Final answer
    x = 1,827.22

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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.