Home / 1,256.48-1,883.70-1,085.18

Finding the Fourth Proportional to 1,256.48, 1,883.70 and 1,085.18

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Solution

The fourth proportional to 1,256.48, 1,883.70 and 1,085.18 is: 1,626.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256.48 : 1,883.70 = 1,085.18 : x
  2. Step 2: Convert to fraction form
    1,256.48/1,883.70 = 1,085.18/x
  3. Step 3: Cross multiply
    1,256.48x = 1,883.70 × 1,085.18
  4. Step 4: Simplify right side
    1,256.48x = 2,044,153.57
  5. Step 5: Solve for x
    x = 2,044,153.57/1,256.48
  6. Step 6: Final answer
    x = 1,626.89

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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.