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Finding the Fourth Proportional to 3,065.66, 4,230.90 and 1,807.11

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Solution

The fourth proportional to 3,065.66, 4,230.90 and 1,807.11 is: 2,493.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.66 : 4,230.90 = 1,807.11 : x
  2. Step 2: Convert to fraction form
    3,065.66/4,230.90 = 1,807.11/x
  3. Step 3: Cross multiply
    3,065.66x = 4,230.90 × 1,807.11
  4. Step 4: Simplify right side
    3,065.66x = 7,645,701.70
  5. Step 5: Solve for x
    x = 7,645,701.70/3,065.66
  6. Step 6: Final answer
    x = 2,493.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.