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Finding the Fourth Proportional to 2,428.47, 3,326.99 and 2,340.99

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Solution

The fourth proportional to 2,428.47, 3,326.99 and 2,340.99 is: 3,207.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.47 : 3,326.99 = 2,340.99 : x
  2. Step 2: Convert to fraction form
    2,428.47/3,326.99 = 2,340.99/x
  3. Step 3: Cross multiply
    2,428.47x = 3,326.99 × 2,340.99
  4. Step 4: Simplify right side
    2,428.47x = 7,788,438.62
  5. Step 5: Solve for x
    x = 7,788,438.62/2,428.47
  6. Step 6: Final answer
    x = 3,207.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.