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Finding the Fourth Proportional to 2,998.32, 4,497.80 and 807.08

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Solution

The fourth proportional to 2,998.32, 4,497.80 and 807.08 is: 1,210.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.32 : 4,497.80 = 807.08 : x
  2. Step 2: Convert to fraction form
    2,998.32/4,497.80 = 807.08/x
  3. Step 3: Cross multiply
    2,998.32x = 4,497.80 × 807.08
  4. Step 4: Simplify right side
    2,998.32x = 3,630,084.42
  5. Step 5: Solve for x
    x = 3,630,084.42/2,998.32
  6. Step 6: Final answer
    x = 1,210.71

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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.