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Finding the Fourth Proportional to 5,809.65, 8,017.08 and 3,156.99

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Solution

The fourth proportional to 5,809.65, 8,017.08 and 3,156.99 is: 4,356.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809.65 : 8,017.08 = 3,156.99 : x
  2. Step 2: Convert to fraction form
    5,809.65/8,017.08 = 3,156.99/x
  3. Step 3: Cross multiply
    5,809.65x = 8,017.08 × 3,156.99
  4. Step 4: Simplify right side
    5,809.65x = 25,309,841.39
  5. Step 5: Solve for x
    x = 25,309,841.39/5,809.65
  6. Step 6: Final answer
    x = 4,356.52

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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.