Home / 1,851.80-2,552.51-1,254.11

Finding the Fourth Proportional to 1,851.80, 2,552.51 and 1,254.11

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Solution

The fourth proportional to 1,851.80, 2,552.51 and 1,254.11 is: 1,728.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.80 : 2,552.51 = 1,254.11 : x
  2. Step 2: Convert to fraction form
    1,851.80/2,552.51 = 1,254.11/x
  3. Step 3: Cross multiply
    1,851.80x = 2,552.51 × 1,254.11
  4. Step 4: Simplify right side
    1,851.80x = 3,201,118.69
  5. Step 5: Solve for x
    x = 3,201,118.69/1,851.80
  6. Step 6: Final answer
    x = 1,728.66

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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.