Home / 5,219.08-7,821.29-2,880.17

Finding the Fourth Proportional to 5,219.08, 7,821.29 and 2,880.17

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Solution

The fourth proportional to 5,219.08, 7,821.29 and 2,880.17 is: 4,316.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.08 : 7,821.29 = 2,880.17 : x
  2. Step 2: Convert to fraction form
    5,219.08/7,821.29 = 2,880.17/x
  3. Step 3: Cross multiply
    5,219.08x = 7,821.29 × 2,880.17
  4. Step 4: Simplify right side
    5,219.08x = 22,526,644.82
  5. Step 5: Solve for x
    x = 22,526,644.82/5,219.08
  6. Step 6: Final answer
    x = 4,316.21

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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.