Home / 2,007.21-2,770.02-1,122.96

Finding the Fourth Proportional to 2,007.21, 2,770.02 and 1,122.96

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Solution

The fourth proportional to 2,007.21, 2,770.02 and 1,122.96 is: 1,549.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.21 : 2,770.02 = 1,122.96 : x
  2. Step 2: Convert to fraction form
    2,007.21/2,770.02 = 1,122.96/x
  3. Step 3: Cross multiply
    2,007.21x = 2,770.02 × 1,122.96
  4. Step 4: Simplify right side
    2,007.21x = 3,110,621.66
  5. Step 5: Solve for x
    x = 3,110,621.66/2,007.21
  6. Step 6: Final answer
    x = 1,549.72

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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.