Home / 7,109.73-10,665.95-3,214.13

Finding the Fourth Proportional to 7,109.73, 10,665.95 and 3,214.13

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Solution

The fourth proportional to 7,109.73, 10,665.95 and 3,214.13 is: 4,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.73 : 10,665.95 = 3,214.13 : x
  2. Step 2: Convert to fraction form
    7,109.73/10,665.95 = 3,214.13/x
  3. Step 3: Cross multiply
    7,109.73x = 10,665.95 × 3,214.13
  4. Step 4: Simplify right side
    7,109.73x = 34,281,680.47
  5. Step 5: Solve for x
    x = 34,281,680.47/7,109.73
  6. Step 6: Final answer
    x = 4,821.80

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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.