Home / 2,639.44-3,641.24-1,520.08

Finding the Fourth Proportional to 2,639.44, 3,641.24 and 1,520.08

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Solution

The fourth proportional to 2,639.44, 3,641.24 and 1,520.08 is: 2,097.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.44 : 3,641.24 = 1,520.08 : x
  2. Step 2: Convert to fraction form
    2,639.44/3,641.24 = 1,520.08/x
  3. Step 3: Cross multiply
    2,639.44x = 3,641.24 × 1,520.08
  4. Step 4: Simplify right side
    2,639.44x = 5,534,973.78
  5. Step 5: Solve for x
    x = 5,534,973.78/2,639.44
  6. Step 6: Final answer
    x = 2,097.03

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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.