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Finding the Fourth Proportional to 4,621.98, 6,930.20 and 1,807.47

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Solution

The fourth proportional to 4,621.98, 6,930.20 and 1,807.47 is: 2,710.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621.98 : 6,930.20 = 1,807.47 : x
  2. Step 2: Convert to fraction form
    4,621.98/6,930.20 = 1,807.47/x
  3. Step 3: Cross multiply
    4,621.98x = 6,930.20 × 1,807.47
  4. Step 4: Simplify right side
    4,621.98x = 12,526,098.79
  5. Step 5: Solve for x
    x = 12,526,098.79/4,621.98
  6. Step 6: Final answer
    x = 2,710.11

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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.