Home / 2,542.20-3,506.94-2,153.40

Finding the Fourth Proportional to 2,542.20, 3,506.94 and 2,153.40

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Solution

The fourth proportional to 2,542.20, 3,506.94 and 2,153.40 is: 2,970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,542.20 : 3,506.94 = 2,153.40 : x
  2. Step 2: Convert to fraction form
    2,542.20/3,506.94 = 2,153.40/x
  3. Step 3: Cross multiply
    2,542.20x = 3,506.94 × 2,153.40
  4. Step 4: Simplify right side
    2,542.20x = 7,551,844.60
  5. Step 5: Solve for x
    x = 7,551,844.60/2,542.20
  6. Step 6: Final answer
    x = 2,970.59

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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.