Home / 2,385.45-3,559.03-2,122.32

Finding the Fourth Proportional to 2,385.45, 3,559.03 and 2,122.32

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Solution

The fourth proportional to 2,385.45, 3,559.03 and 2,122.32 is: 3,166.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.45 : 3,559.03 = 2,122.32 : x
  2. Step 2: Convert to fraction form
    2,385.45/3,559.03 = 2,122.32/x
  3. Step 3: Cross multiply
    2,385.45x = 3,559.03 × 2,122.32
  4. Step 4: Simplify right side
    2,385.45x = 7,553,414.75
  5. Step 5: Solve for x
    x = 7,553,414.75/2,385.45
  6. Step 6: Final answer
    x = 3,166.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.