Home / 1,327.18-1,827.78-1,298.48

Finding the Fourth Proportional to 1,327.18, 1,827.78 and 1,298.48

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Solution

The fourth proportional to 1,327.18, 1,827.78 and 1,298.48 is: 1,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.18 : 1,827.78 = 1,298.48 : x
  2. Step 2: Convert to fraction form
    1,327.18/1,827.78 = 1,298.48/x
  3. Step 3: Cross multiply
    1,327.18x = 1,827.78 × 1,298.48
  4. Step 4: Simplify right side
    1,327.18x = 2,373,335.77
  5. Step 5: Solve for x
    x = 2,373,335.77/1,327.18
  6. Step 6: Final answer
    x = 1,788.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.