Home / 1,923.30-2,655.03-1,126.51

Finding the Fourth Proportional to 1,923.30, 2,655.03 and 1,126.51

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Solution

The fourth proportional to 1,923.30, 2,655.03 and 1,126.51 is: 1,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,923.30 : 2,655.03 = 1,126.51 : x
  2. Step 2: Convert to fraction form
    1,923.30/2,655.03 = 1,126.51/x
  3. Step 3: Cross multiply
    1,923.30x = 2,655.03 × 1,126.51
  4. Step 4: Simplify right side
    1,923.30x = 2,990,922.90
  5. Step 5: Solve for x
    x = 2,990,922.90/1,923.30
  6. Step 6: Final answer
    x = 1,555.10

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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.