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Finding the Fourth Proportional to 4,000.69, 6,000.98 and 1,807.89

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Solution

The fourth proportional to 4,000.69, 6,000.98 and 1,807.89 is: 2,711.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,000.69 : 6,000.98 = 1,807.89 : x
  2. Step 2: Convert to fraction form
    4,000.69/6,000.98 = 1,807.89/x
  3. Step 3: Cross multiply
    4,000.69x = 6,000.98 × 1,807.89
  4. Step 4: Simplify right side
    4,000.69x = 10,849,111.73
  5. Step 5: Solve for x
    x = 10,849,111.73/4,000.69
  6. Step 6: Final answer
    x = 2,711.81

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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.