Home / 1,874.19-2,586.59-1,128.59

Finding the Fourth Proportional to 1,874.19, 2,586.59 and 1,128.59

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Solution

The fourth proportional to 1,874.19, 2,586.59 and 1,128.59 is: 1,557.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.19 : 2,586.59 = 1,128.59 : x
  2. Step 2: Convert to fraction form
    1,874.19/2,586.59 = 1,128.59/x
  3. Step 3: Cross multiply
    1,874.19x = 2,586.59 × 1,128.59
  4. Step 4: Simplify right side
    1,874.19x = 2,919,181.03
  5. Step 5: Solve for x
    x = 2,919,181.03/1,874.19
  6. Step 6: Final answer
    x = 1,557.57

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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.