Home / 1,610.40-2,202.36-1,567.20

Finding the Fourth Proportional to 1,610.40, 2,202.36 and 1,567.20

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Solution

The fourth proportional to 1,610.40, 2,202.36 and 1,567.20 is: 2,143.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.40 : 2,202.36 = 1,567.20 : x
  2. Step 2: Convert to fraction form
    1,610.40/2,202.36 = 1,567.20/x
  3. Step 3: Cross multiply
    1,610.40x = 2,202.36 × 1,567.20
  4. Step 4: Simplify right side
    1,610.40x = 3,451,538.59
  5. Step 5: Solve for x
    x = 3,451,538.59/1,610.40
  6. Step 6: Final answer
    x = 2,143.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.