Home / 2,270.08-3,132.54-1,275.20

Finding the Fourth Proportional to 2,270.08, 3,132.54 and 1,275.20

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Solution

The fourth proportional to 2,270.08, 3,132.54 and 1,275.20 is: 1,759.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.08 : 3,132.54 = 1,275.20 : x
  2. Step 2: Convert to fraction form
    2,270.08/3,132.54 = 1,275.20/x
  3. Step 3: Cross multiply
    2,270.08x = 3,132.54 × 1,275.20
  4. Step 4: Simplify right side
    2,270.08x = 3,994,615.01
  5. Step 5: Solve for x
    x = 3,994,615.01/2,270.08
  6. Step 6: Final answer
    x = 1,759.68

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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.