Home / 1,569.11-2,166.82-1,175.45

Finding the Fourth Proportional to 1,569.11, 2,166.82 and 1,175.45

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Solution

The fourth proportional to 1,569.11, 2,166.82 and 1,175.45 is: 1,623.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.11 : 2,166.82 = 1,175.45 : x
  2. Step 2: Convert to fraction form
    1,569.11/2,166.82 = 1,175.45/x
  3. Step 3: Cross multiply
    1,569.11x = 2,166.82 × 1,175.45
  4. Step 4: Simplify right side
    1,569.11x = 2,546,974.80
  5. Step 5: Solve for x
    x = 2,546,974.80/1,569.11
  6. Step 6: Final answer
    x = 1,623.20

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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.