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Finding the Fourth Proportional to 7,078.95, 10,618.43 and 2,399.00

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Solution

The fourth proportional to 7,078.95, 10,618.43 and 2,399.00 is: 3,598.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.95 : 10,618.43 = 2,399.00 : x
  2. Step 2: Convert to fraction form
    7,078.95/10,618.43 = 2,399.00/x
  3. Step 3: Cross multiply
    7,078.95x = 10,618.43 × 2,399.00
  4. Step 4: Simplify right side
    7,078.95x = 25,473,548.48
  5. Step 5: Solve for x
    x = 25,473,548.48/7,078.95
  6. Step 6: Final answer
    x = 3,598.49

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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.