Home / 2,777.20-4,165.82-1,133.30

Finding the Fourth Proportional to 2,777.20, 4,165.82 and 1,133.30

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Solution

The fourth proportional to 2,777.20, 4,165.82 and 1,133.30 is: 1,699.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.20 : 4,165.82 = 1,133.30 : x
  2. Step 2: Convert to fraction form
    2,777.20/4,165.82 = 1,133.30/x
  3. Step 3: Cross multiply
    2,777.20x = 4,165.82 × 1,133.30
  4. Step 4: Simplify right side
    2,777.20x = 4,721,123.81
  5. Step 5: Solve for x
    x = 4,721,123.81/2,777.20
  6. Step 6: Final answer
    x = 1,699.96

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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.