Home / 1,610.55-2,222.24-1,112.40

Finding the Fourth Proportional to 1,610.55, 2,222.24 and 1,112.40

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Solution

The fourth proportional to 1,610.55, 2,222.24 and 1,112.40 is: 1,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.55 : 2,222.24 = 1,112.40 : x
  2. Step 2: Convert to fraction form
    1,610.55/2,222.24 = 1,112.40/x
  3. Step 3: Cross multiply
    1,610.55x = 2,222.24 × 1,112.40
  4. Step 4: Simplify right side
    1,610.55x = 2,472,014.21
  5. Step 5: Solve for x
    x = 2,472,014.21/1,610.55
  6. Step 6: Final answer
    x = 1,534.89

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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.