Home / 1,310.58-1,966.14-1,095.66

Finding the Fourth Proportional to 1,310.58, 1,966.14 and 1,095.66

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Solution

The fourth proportional to 1,310.58, 1,966.14 and 1,095.66 is: 1,643.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310.58 : 1,966.14 = 1,095.66 : x
  2. Step 2: Convert to fraction form
    1,310.58/1,966.14 = 1,095.66/x
  3. Step 3: Cross multiply
    1,310.58x = 1,966.14 × 1,095.66
  4. Step 4: Simplify right side
    1,310.58x = 2,154,220.95
  5. Step 5: Solve for x
    x = 2,154,220.95/1,310.58
  6. Step 6: Final answer
    x = 1,643.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.