Home / 2,453.23-3,385.28-1,391.02

Finding the Fourth Proportional to 2,453.23, 3,385.28 and 1,391.02

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Solution

The fourth proportional to 2,453.23, 3,385.28 and 1,391.02 is: 1,919.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453.23 : 3,385.28 = 1,391.02 : x
  2. Step 2: Convert to fraction form
    2,453.23/3,385.28 = 1,391.02/x
  3. Step 3: Cross multiply
    2,453.23x = 3,385.28 × 1,391.02
  4. Step 4: Simplify right side
    2,453.23x = 4,708,987.20
  5. Step 5: Solve for x
    x = 4,708,987.20/2,453.23
  6. Step 6: Final answer
    x = 1,919.50

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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.