Home / 2,578.24-3,559.52-1,872.40

Finding the Fourth Proportional to 2,578.24, 3,559.52 and 1,872.40

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Solution

The fourth proportional to 2,578.24, 3,559.52 and 1,872.40 is: 2,585.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.24 : 3,559.52 = 1,872.40 : x
  2. Step 2: Convert to fraction form
    2,578.24/3,559.52 = 1,872.40/x
  3. Step 3: Cross multiply
    2,578.24x = 3,559.52 × 1,872.40
  4. Step 4: Simplify right side
    2,578.24x = 6,664,845.25
  5. Step 5: Solve for x
    x = 6,664,845.25/2,578.24
  6. Step 6: Final answer
    x = 2,585.04

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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.