Home / 2,275.44-3,140.12-1,344.40

Finding the Fourth Proportional to 2,275.44, 3,140.12 and 1,344.40

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Solution

The fourth proportional to 2,275.44, 3,140.12 and 1,344.40 is: 1,855.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.44 : 3,140.12 = 1,344.40 : x
  2. Step 2: Convert to fraction form
    2,275.44/3,140.12 = 1,344.40/x
  3. Step 3: Cross multiply
    2,275.44x = 3,140.12 × 1,344.40
  4. Step 4: Simplify right side
    2,275.44x = 4,221,577.33
  5. Step 5: Solve for x
    x = 4,221,577.33/2,275.44
  6. Step 6: Final answer
    x = 1,855.28

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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.