Home / 1,237.56-1,856.36-1,020.68

Finding the Fourth Proportional to 1,237.56, 1,856.36 and 1,020.68

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Solution

The fourth proportional to 1,237.56, 1,856.36 and 1,020.68 is: 1,531.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237.56 : 1,856.36 = 1,020.68 : x
  2. Step 2: Convert to fraction form
    1,237.56/1,856.36 = 1,020.68/x
  3. Step 3: Cross multiply
    1,237.56x = 1,856.36 × 1,020.68
  4. Step 4: Simplify right side
    1,237.56x = 1,894,749.52
  5. Step 5: Solve for x
    x = 1,894,749.52/1,237.56
  6. Step 6: Final answer
    x = 1,531.04

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1.5x scale

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.