Home / 1,575.58-2,174.30-867.43

Finding the Fourth Proportional to 1,575.58, 2,174.30 and 867.43

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Solution

The fourth proportional to 1,575.58, 2,174.30 and 867.43 is: 1,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575.58 : 2,174.30 = 867.43 : x
  2. Step 2: Convert to fraction form
    1,575.58/2,174.30 = 867.43/x
  3. Step 3: Cross multiply
    1,575.58x = 2,174.30 × 867.43
  4. Step 4: Simplify right side
    1,575.58x = 1,886,053.05
  5. Step 5: Solve for x
    x = 1,886,053.05/1,575.58
  6. Step 6: Final answer
    x = 1,197.05

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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.