Home / 1,888.97-2,606.84-1,143.07

Finding the Fourth Proportional to 1,888.97, 2,606.84 and 1,143.07

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Solution

The fourth proportional to 1,888.97, 2,606.84 and 1,143.07 is: 1,577.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.97 : 2,606.84 = 1,143.07 : x
  2. Step 2: Convert to fraction form
    1,888.97/2,606.84 = 1,143.07/x
  3. Step 3: Cross multiply
    1,888.97x = 2,606.84 × 1,143.07
  4. Step 4: Simplify right side
    1,888.97x = 2,979,781.85
  5. Step 5: Solve for x
    x = 2,979,781.85/1,888.97
  6. Step 6: Final answer
    x = 1,577.46

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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.