Home / 2,528.12-3,774.48-2,380.70

Finding the Fourth Proportional to 2,528.12, 3,774.48 and 2,380.70

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Solution

The fourth proportional to 2,528.12, 3,774.48 and 2,380.70 is: 3,554.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.12 : 3,774.48 = 2,380.70 : x
  2. Step 2: Convert to fraction form
    2,528.12/3,774.48 = 2,380.70/x
  3. Step 3: Cross multiply
    2,528.12x = 3,774.48 × 2,380.70
  4. Step 4: Simplify right side
    2,528.12x = 8,985,904.54
  5. Step 5: Solve for x
    x = 8,985,904.54/2,528.12
  6. Step 6: Final answer
    x = 3,554.38

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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.