Home / 1,571.32-2,167.20-1,152.52

Finding the Fourth Proportional to 1,571.32, 2,167.20 and 1,152.52

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Solution

The fourth proportional to 1,571.32, 2,167.20 and 1,152.52 is: 1,589.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.32 : 2,167.20 = 1,152.52 : x
  2. Step 2: Convert to fraction form
    1,571.32/2,167.20 = 1,152.52/x
  3. Step 3: Cross multiply
    1,571.32x = 2,167.20 × 1,152.52
  4. Step 4: Simplify right side
    1,571.32x = 2,497,741.34
  5. Step 5: Solve for x
    x = 2,497,741.34/1,571.32
  6. Step 6: Final answer
    x = 1,589.58

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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.