Home / 1,865.88-2,574.78-1,119.66

Finding the Fourth Proportional to 1,865.88, 2,574.78 and 1,119.66

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Solution

The fourth proportional to 1,865.88, 2,574.78 and 1,119.66 is: 1,545.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.88 : 2,574.78 = 1,119.66 : x
  2. Step 2: Convert to fraction form
    1,865.88/2,574.78 = 1,119.66/x
  3. Step 3: Cross multiply
    1,865.88x = 2,574.78 × 1,119.66
  4. Step 4: Simplify right side
    1,865.88x = 2,882,878.17
  5. Step 5: Solve for x
    x = 2,882,878.17/1,865.88
  6. Step 6: Final answer
    x = 1,545.05

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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.