Home / 2,772.12-4,158.80-1,040.76

Finding the Fourth Proportional to 2,772.12, 4,158.80 and 1,040.76

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Solution

The fourth proportional to 2,772.12, 4,158.80 and 1,040.76 is: 1,561.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.12 : 4,158.80 = 1,040.76 : x
  2. Step 2: Convert to fraction form
    2,772.12/4,158.80 = 1,040.76/x
  3. Step 3: Cross multiply
    2,772.12x = 4,158.80 × 1,040.76
  4. Step 4: Simplify right side
    2,772.12x = 4,328,312.69
  5. Step 5: Solve for x
    x = 4,328,312.69/2,772.12
  6. Step 6: Final answer
    x = 1,561.37

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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.