Home / 1,126.75-1,690.53-1,036.84

Finding the Fourth Proportional to 1,126.75, 1,690.53 and 1,036.84

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Solution

The fourth proportional to 1,126.75, 1,690.53 and 1,036.84 is: 1,555.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.75 : 1,690.53 = 1,036.84 : x
  2. Step 2: Convert to fraction form
    1,126.75/1,690.53 = 1,036.84/x
  3. Step 3: Cross multiply
    1,126.75x = 1,690.53 × 1,036.84
  4. Step 4: Simplify right side
    1,126.75x = 1,752,809.13
  5. Step 5: Solve for x
    x = 1,752,809.13/1,126.75
  6. Step 6: Final answer
    x = 1,555.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.