Home / 1,864.85-2,573.34-1,078.95

Finding the Fourth Proportional to 1,864.85, 2,573.34 and 1,078.95

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Solution

The fourth proportional to 1,864.85, 2,573.34 and 1,078.95 is: 1,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.85 : 2,573.34 = 1,078.95 : x
  2. Step 2: Convert to fraction form
    1,864.85/2,573.34 = 1,078.95/x
  3. Step 3: Cross multiply
    1,864.85x = 2,573.34 × 1,078.95
  4. Step 4: Simplify right side
    1,864.85x = 2,776,505.19
  5. Step 5: Solve for x
    x = 2,776,505.19/1,864.85
  6. Step 6: Final answer
    x = 1,488.87

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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.