Home / 1,478.94-2,041.12-849.57

Finding the Fourth Proportional to 1,478.94, 2,041.12 and 849.57

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Solution

The fourth proportional to 1,478.94, 2,041.12 and 849.57 is: 1,172.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.94 : 2,041.12 = 849.57 : x
  2. Step 2: Convert to fraction form
    1,478.94/2,041.12 = 849.57/x
  3. Step 3: Cross multiply
    1,478.94x = 2,041.12 × 849.57
  4. Step 4: Simplify right side
    1,478.94x = 1,734,064.11
  5. Step 5: Solve for x
    x = 1,734,064.11/1,478.94
  6. Step 6: Final answer
    x = 1,172.51

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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.