Home / 3,277.58-4,916.28-812.35

Finding the Fourth Proportional to 3,277.58, 4,916.28 and 812.35

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Solution

The fourth proportional to 3,277.58, 4,916.28 and 812.35 is: 1,218.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,277.58 : 4,916.28 = 812.35 : x
  2. Step 2: Convert to fraction form
    3,277.58/4,916.28 = 812.35/x
  3. Step 3: Cross multiply
    3,277.58x = 4,916.28 × 812.35
  4. Step 4: Simplify right side
    3,277.58x = 3,993,715.48
  5. Step 5: Solve for x
    x = 3,993,715.48/3,277.58
  6. Step 6: Final answer
    x = 1,218.50

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Double scale
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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.