Home / 2,770.16-4,155.28-822.33

Finding the Fourth Proportional to 2,770.16, 4,155.28 and 822.33

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Solution

The fourth proportional to 2,770.16, 4,155.28 and 822.33 is: 1,233.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.16 : 4,155.28 = 822.33 : x
  2. Step 2: Convert to fraction form
    2,770.16/4,155.28 = 822.33/x
  3. Step 3: Cross multiply
    2,770.16x = 4,155.28 × 822.33
  4. Step 4: Simplify right side
    2,770.16x = 3,417,009.35
  5. Step 5: Solve for x
    x = 3,417,009.35/2,770.16
  6. Step 6: Final answer
    x = 1,233.51

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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.