Home / 7,817.38-10,788.02-4,280.56

Finding the Fourth Proportional to 7,817.38, 10,788.02 and 4,280.56

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Solution

The fourth proportional to 7,817.38, 10,788.02 and 4,280.56 is: 5,907.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.38 : 10,788.02 = 4,280.56 : x
  2. Step 2: Convert to fraction form
    7,817.38/10,788.02 = 4,280.56/x
  3. Step 3: Cross multiply
    7,817.38x = 10,788.02 × 4,280.56
  4. Step 4: Simplify right side
    7,817.38x = 46,178,766.89
  5. Step 5: Solve for x
    x = 46,178,766.89/7,817.38
  6. Step 6: Final answer
    x = 5,907.19

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Half scale
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Double scale
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1.5x scale

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.