Home / 1,649.44-2,275.68-1,177.42

Finding the Fourth Proportional to 1,649.44, 2,275.68 and 1,177.42

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Solution

The fourth proportional to 1,649.44, 2,275.68 and 1,177.42 is: 1,624.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649.44 : 2,275.68 = 1,177.42 : x
  2. Step 2: Convert to fraction form
    1,649.44/2,275.68 = 1,177.42/x
  3. Step 3: Cross multiply
    1,649.44x = 2,275.68 × 1,177.42
  4. Step 4: Simplify right side
    1,649.44x = 2,679,431.15
  5. Step 5: Solve for x
    x = 2,679,431.15/1,649.44
  6. Step 6: Final answer
    x = 1,624.45

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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.