Home / 2,275.32-3,140.46-1,344.36

Finding the Fourth Proportional to 2,275.32, 3,140.46 and 1,344.36

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Solution

The fourth proportional to 2,275.32, 3,140.46 and 1,344.36 is: 1,855.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.32 : 3,140.46 = 1,344.36 : x
  2. Step 2: Convert to fraction form
    2,275.32/3,140.46 = 1,344.36/x
  3. Step 3: Cross multiply
    2,275.32x = 3,140.46 × 1,344.36
  4. Step 4: Simplify right side
    2,275.32x = 4,221,908.81
  5. Step 5: Solve for x
    x = 4,221,908.81/2,275.32
  6. Step 6: Final answer
    x = 1,855.52

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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.