Home / 7,817.90-10,788.98-4,281.10

Finding the Fourth Proportional to 7,817.90, 10,788.98 and 4,281.10

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Solution

The fourth proportional to 7,817.90, 10,788.98 and 4,281.10 is: 5,908.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.90 : 10,788.98 = 4,281.10 : x
  2. Step 2: Convert to fraction form
    7,817.90/10,788.98 = 4,281.10/x
  3. Step 3: Cross multiply
    7,817.90x = 10,788.98 × 4,281.10
  4. Step 4: Simplify right side
    7,817.90x = 46,188,653.90
  5. Step 5: Solve for x
    x = 46,188,653.90/7,817.90
  6. Step 6: Final answer
    x = 5,908.07

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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.