Home / 2,045.26-2,821.68-1,160.40

Finding the Fourth Proportional to 2,045.26, 2,821.68 and 1,160.40

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Solution

The fourth proportional to 2,045.26, 2,821.68 and 1,160.40 is: 1,600.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.26 : 2,821.68 = 1,160.40 : x
  2. Step 2: Convert to fraction form
    2,045.26/2,821.68 = 1,160.40/x
  3. Step 3: Cross multiply
    2,045.26x = 2,821.68 × 1,160.40
  4. Step 4: Simplify right side
    2,045.26x = 3,274,277.47
  5. Step 5: Solve for x
    x = 3,274,277.47/2,045.26
  6. Step 6: Final answer
    x = 1,600.91

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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.