Home / 1,317.16-1,817.85-1,095.73

Finding the Fourth Proportional to 1,317.16, 1,817.85 and 1,095.73

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Solution

The fourth proportional to 1,317.16, 1,817.85 and 1,095.73 is: 1,512.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.16 : 1,817.85 = 1,095.73 : x
  2. Step 2: Convert to fraction form
    1,317.16/1,817.85 = 1,095.73/x
  3. Step 3: Cross multiply
    1,317.16x = 1,817.85 × 1,095.73
  4. Step 4: Simplify right side
    1,317.16x = 1,991,872.78
  5. Step 5: Solve for x
    x = 1,991,872.78/1,317.16
  6. Step 6: Final answer
    x = 1,512.25

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1.5x scale

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.