Home / 1,777.32-2,452.38-1,078.44

Finding the Fourth Proportional to 1,777.32, 2,452.38 and 1,078.44

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Solution

The fourth proportional to 1,777.32, 2,452.38 and 1,078.44 is: 1,488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.32 : 2,452.38 = 1,078.44 : x
  2. Step 2: Convert to fraction form
    1,777.32/2,452.38 = 1,078.44/x
  3. Step 3: Cross multiply
    1,777.32x = 2,452.38 × 1,078.44
  4. Step 4: Simplify right side
    1,777.32x = 2,644,744.69
  5. Step 5: Solve for x
    x = 2,644,744.69/1,777.32
  6. Step 6: Final answer
    x = 1,488.05

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1.5x scale

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.