Home / 2,570.13-3,546.77-1,391.18

Finding the Fourth Proportional to 2,570.13, 3,546.77 and 1,391.18

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Solution

The fourth proportional to 2,570.13, 3,546.77 and 1,391.18 is: 1,919.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,570.13 : 3,546.77 = 1,391.18 : x
  2. Step 2: Convert to fraction form
    2,570.13/3,546.77 = 1,391.18/x
  3. Step 3: Cross multiply
    2,570.13x = 3,546.77 × 1,391.18
  4. Step 4: Simplify right side
    2,570.13x = 4,934,170.80
  5. Step 5: Solve for x
    x = 4,934,170.80/2,570.13
  6. Step 6: Final answer
    x = 1,919.81

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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.