Home / 2,521.01-3,784.55-2,115.20

Finding the Fourth Proportional to 2,521.01, 3,784.55 and 2,115.20

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Solution

The fourth proportional to 2,521.01, 3,784.55 and 2,115.20 is: 3,175.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,521.01 : 3,784.55 = 2,115.20 : x
  2. Step 2: Convert to fraction form
    2,521.01/3,784.55 = 2,115.20/x
  3. Step 3: Cross multiply
    2,521.01x = 3,784.55 × 2,115.20
  4. Step 4: Simplify right side
    2,521.01x = 8,005,050.66
  5. Step 5: Solve for x
    x = 8,005,050.66/2,521.01
  6. Step 6: Final answer
    x = 3,175.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.