Home / 1,532.90-2,115.44-943.22

Finding the Fourth Proportional to 1,532.90, 2,115.44 and 943.22

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Solution

The fourth proportional to 1,532.90, 2,115.44 and 943.22 is: 1,301.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532.90 : 2,115.44 = 943.22 : x
  2. Step 2: Convert to fraction form
    1,532.90/2,115.44 = 943.22/x
  3. Step 3: Cross multiply
    1,532.90x = 2,115.44 × 943.22
  4. Step 4: Simplify right side
    1,532.90x = 1,995,310.02
  5. Step 5: Solve for x
    x = 1,995,310.02/1,532.90
  6. Step 6: Final answer
    x = 1,301.66

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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.