Home / 1,357.44-2,046.19-1,278.16

Finding the Fourth Proportional to 1,357.44, 2,046.19 and 1,278.16

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Solution

The fourth proportional to 1,357.44, 2,046.19 and 1,278.16 is: 1,926.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.44 : 2,046.19 = 1,278.16 : x
  2. Step 2: Convert to fraction form
    1,357.44/2,046.19 = 1,278.16/x
  3. Step 3: Cross multiply
    1,357.44x = 2,046.19 × 1,278.16
  4. Step 4: Simplify right side
    1,357.44x = 2,615,358.21
  5. Step 5: Solve for x
    x = 2,615,358.21/1,357.44
  6. Step 6: Final answer
    x = 1,926.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.