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Finding the Fourth Proportional to 1,851.55, 2,551.96 and 1,675.55

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Solution

The fourth proportional to 1,851.55, 2,551.96 and 1,675.55 is: 2,309.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.55 : 2,551.96 = 1,675.55 : x
  2. Step 2: Convert to fraction form
    1,851.55/2,551.96 = 1,675.55/x
  3. Step 3: Cross multiply
    1,851.55x = 2,551.96 × 1,675.55
  4. Step 4: Simplify right side
    1,851.55x = 4,275,928.20
  5. Step 5: Solve for x
    x = 4,275,928.20/1,851.55
  6. Step 6: Final answer
    x = 2,309.38

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1.5x scale

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.