Home / 2,600.48-3,894.56-1,821.20

Finding the Fourth Proportional to 2,600.48, 3,894.56 and 1,821.20

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Solution

The fourth proportional to 2,600.48, 3,894.56 and 1,821.20 is: 2,727.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.48 : 3,894.56 = 1,821.20 : x
  2. Step 2: Convert to fraction form
    2,600.48/3,894.56 = 1,821.20/x
  3. Step 3: Cross multiply
    2,600.48x = 3,894.56 × 1,821.20
  4. Step 4: Simplify right side
    2,600.48x = 7,092,772.67
  5. Step 5: Solve for x
    x = 7,092,772.67/2,600.48
  6. Step 6: Final answer
    x = 2,727.49

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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.