Home / 1,575.24-2,173.84-867.09

Finding the Fourth Proportional to 1,575.24, 2,173.84 and 867.09

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Solution

The fourth proportional to 1,575.24, 2,173.84 and 867.09 is: 1,196.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575.24 : 2,173.84 = 867.09 : x
  2. Step 2: Convert to fraction form
    1,575.24/2,173.84 = 867.09/x
  3. Step 3: Cross multiply
    1,575.24x = 2,173.84 × 867.09
  4. Step 4: Simplify right side
    1,575.24x = 1,884,904.61
  5. Step 5: Solve for x
    x = 1,884,904.61/1,575.24
  6. Step 6: Final answer
    x = 1,196.58

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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.