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Finding the Fourth Proportional to 7,074.99, 10,612.49 and 1,881.39

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Solution

The fourth proportional to 7,074.99, 10,612.49 and 1,881.39 is: 2,822.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.99 : 10,612.49 = 1,881.39 : x
  2. Step 2: Convert to fraction form
    7,074.99/10,612.49 = 1,881.39/x
  3. Step 3: Cross multiply
    7,074.99x = 10,612.49 × 1,881.39
  4. Step 4: Simplify right side
    7,074.99x = 19,966,223.15
  5. Step 5: Solve for x
    x = 19,966,223.15/7,074.99
  6. Step 6: Final answer
    x = 2,822.09

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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.