Home / 1,152.20-1,578.96-1,041.49

Finding the Fourth Proportional to 1,152.20, 1,578.96 and 1,041.49

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Solution

The fourth proportional to 1,152.20, 1,578.96 and 1,041.49 is: 1,427.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152.20 : 1,578.96 = 1,041.49 : x
  2. Step 2: Convert to fraction form
    1,152.20/1,578.96 = 1,041.49/x
  3. Step 3: Cross multiply
    1,152.20x = 1,578.96 × 1,041.49
  4. Step 4: Simplify right side
    1,152.20x = 1,644,463.16
  5. Step 5: Solve for x
    x = 1,644,463.16/1,152.20
  6. Step 6: Final answer
    x = 1,427.24

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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.