Home / 1,916.06-2,874.08-820.33

Finding the Fourth Proportional to 1,916.06, 2,874.08 and 820.33

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Solution

The fourth proportional to 1,916.06, 2,874.08 and 820.33 is: 1,230.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.06 : 2,874.08 = 820.33 : x
  2. Step 2: Convert to fraction form
    1,916.06/2,874.08 = 820.33/x
  3. Step 3: Cross multiply
    1,916.06x = 2,874.08 × 820.33
  4. Step 4: Simplify right side
    1,916.06x = 2,357,688.91
  5. Step 5: Solve for x
    x = 2,357,688.91/1,916.06
  6. Step 6: Final answer
    x = 1,230.49

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Similar ratio
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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.