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Finding the Fourth Proportional to 5,017.50, 6,924.15 and 2,809.50

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Solution

The fourth proportional to 5,017.50, 6,924.15 and 2,809.50 is: 3,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,017.50 : 6,924.15 = 2,809.50 : x
  2. Step 2: Convert to fraction form
    5,017.50/6,924.15 = 2,809.50/x
  3. Step 3: Cross multiply
    5,017.50x = 6,924.15 × 2,809.50
  4. Step 4: Simplify right side
    5,017.50x = 19,453,399.43
  5. Step 5: Solve for x
    x = 19,453,399.43/5,017.50
  6. Step 6: Final answer
    x = 3,877.11

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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.