Home / 1,851.18-2,555.20-1,065.76

Finding the Fourth Proportional to 1,851.18, 2,555.20 and 1,065.76

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Solution

The fourth proportional to 1,851.18, 2,555.20 and 1,065.76 is: 1,471.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.18 : 2,555.20 = 1,065.76 : x
  2. Step 2: Convert to fraction form
    1,851.18/2,555.20 = 1,065.76/x
  3. Step 3: Cross multiply
    1,851.18x = 2,555.20 × 1,065.76
  4. Step 4: Simplify right side
    1,851.18x = 2,723,229.95
  5. Step 5: Solve for x
    x = 2,723,229.95/1,851.18
  6. Step 6: Final answer
    x = 1,471.08

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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.