Home / 2,225.32-3,069.64-1,340.56

Finding the Fourth Proportional to 2,225.32, 3,069.64 and 1,340.56

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Solution

The fourth proportional to 2,225.32, 3,069.64 and 1,340.56 is: 1,849.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.32 : 3,069.64 = 1,340.56 : x
  2. Step 2: Convert to fraction form
    2,225.32/3,069.64 = 1,340.56/x
  3. Step 3: Cross multiply
    2,225.32x = 3,069.64 × 1,340.56
  4. Step 4: Simplify right side
    2,225.32x = 4,115,036.60
  5. Step 5: Solve for x
    x = 4,115,036.60/2,225.32
  6. Step 6: Final answer
    x = 1,849.19

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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.