Home / 4,787.05-7,180.98-1,277.59

Finding the Fourth Proportional to 4,787.05, 7,180.98 and 1,277.59

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Solution

The fourth proportional to 4,787.05, 7,180.98 and 1,277.59 is: 1,916.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.05 : 7,180.98 = 1,277.59 : x
  2. Step 2: Convert to fraction form
    4,787.05/7,180.98 = 1,277.59/x
  3. Step 3: Cross multiply
    4,787.05x = 7,180.98 × 1,277.59
  4. Step 4: Simplify right side
    4,787.05x = 9,174,348.24
  5. Step 5: Solve for x
    x = 9,174,348.24/4,787.05
  6. Step 6: Final answer
    x = 1,916.49

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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.