Home / 1,385.77-2,063.27-1,366.40

Finding the Fourth Proportional to 1,385.77, 2,063.27 and 1,366.40

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Solution

The fourth proportional to 1,385.77, 2,063.27 and 1,366.40 is: 2,034.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385.77 : 2,063.27 = 1,366.40 : x
  2. Step 2: Convert to fraction form
    1,385.77/2,063.27 = 1,366.40/x
  3. Step 3: Cross multiply
    1,385.77x = 2,063.27 × 1,366.40
  4. Step 4: Simplify right side
    1,385.77x = 2,819,234.98
  5. Step 5: Solve for x
    x = 2,819,234.98/1,385.77
  6. Step 6: Final answer
    x = 2,034.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.