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Finding the Fourth Proportional to 4,807.86, 7,208.88 and 2,340.21

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Solution

The fourth proportional to 4,807.86, 7,208.88 and 2,340.21 is: 3,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,807.86 : 7,208.88 = 2,340.21 : x
  2. Step 2: Convert to fraction form
    4,807.86/7,208.88 = 2,340.21/x
  3. Step 3: Cross multiply
    4,807.86x = 7,208.88 × 2,340.21
  4. Step 4: Simplify right side
    4,807.86x = 16,870,293.06
  5. Step 5: Solve for x
    x = 16,870,293.06/4,807.86
  6. Step 6: Final answer
    x = 3,508.90

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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.