Home / 2,542.24-3,506.96-1,920.16

Finding the Fourth Proportional to 2,542.24, 3,506.96 and 1,920.16

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Solution

The fourth proportional to 2,542.24, 3,506.96 and 1,920.16 is: 2,648.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,542.24 : 3,506.96 = 1,920.16 : x
  2. Step 2: Convert to fraction form
    2,542.24/3,506.96 = 1,920.16/x
  3. Step 3: Cross multiply
    2,542.24x = 3,506.96 × 1,920.16
  4. Step 4: Simplify right side
    2,542.24x = 6,733,924.31
  5. Step 5: Solve for x
    x = 6,733,924.31/2,542.24
  6. Step 6: Final answer
    x = 2,648.82

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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.