Home / 1,851.55-2,555.26-1,065.58

Finding the Fourth Proportional to 1,851.55, 2,555.26 and 1,065.58

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Solution

The fourth proportional to 1,851.55, 2,555.26 and 1,065.58 is: 1,470.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.55 : 2,555.26 = 1,065.58 : x
  2. Step 2: Convert to fraction form
    1,851.55/2,555.26 = 1,065.58/x
  3. Step 3: Cross multiply
    1,851.55x = 2,555.26 × 1,065.58
  4. Step 4: Simplify right side
    1,851.55x = 2,722,833.95
  5. Step 5: Solve for x
    x = 2,722,833.95/1,851.55
  6. Step 6: Final answer
    x = 1,470.57

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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.