Home / 1,508.50-2,081.70-845.35

Finding the Fourth Proportional to 1,508.50, 2,081.70 and 845.35

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Solution

The fourth proportional to 1,508.50, 2,081.70 and 845.35 is: 1,166.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.50 : 2,081.70 = 845.35 : x
  2. Step 2: Convert to fraction form
    1,508.50/2,081.70 = 845.35/x
  3. Step 3: Cross multiply
    1,508.50x = 2,081.70 × 845.35
  4. Step 4: Simplify right side
    1,508.50x = 1,759,765.10
  5. Step 5: Solve for x
    x = 1,759,765.10/1,508.50
  6. Step 6: Final answer
    x = 1,166.57

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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.