Home / 2,403.90-3,319.45-1,521.27

Finding the Fourth Proportional to 2,403.90, 3,319.45 and 1,521.27

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Solution

The fourth proportional to 2,403.90, 3,319.45 and 1,521.27 is: 2,100.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.90 : 3,319.45 = 1,521.27 : x
  2. Step 2: Convert to fraction form
    2,403.90/3,319.45 = 1,521.27/x
  3. Step 3: Cross multiply
    2,403.90x = 3,319.45 × 1,521.27
  4. Step 4: Simplify right side
    2,403.90x = 5,049,775.90
  5. Step 5: Solve for x
    x = 5,049,775.90/2,403.90
  6. Step 6: Final answer
    x = 2,100.66

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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.