Home / 2,777.12-4,166.30-1,045.76

Finding the Fourth Proportional to 2,777.12, 4,166.30 and 1,045.76

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Solution

The fourth proportional to 2,777.12, 4,166.30 and 1,045.76 is: 1,568.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.12 : 4,166.30 = 1,045.76 : x
  2. Step 2: Convert to fraction form
    2,777.12/4,166.30 = 1,045.76/x
  3. Step 3: Cross multiply
    2,777.12x = 4,166.30 × 1,045.76
  4. Step 4: Simplify right side
    2,777.12x = 4,356,949.89
  5. Step 5: Solve for x
    x = 4,356,949.89/2,777.12
  6. Step 6: Final answer
    x = 1,568.87

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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.