Home / 4,815.30-6,643.98-2,719.02

Finding the Fourth Proportional to 4,815.30, 6,643.98 and 2,719.02

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Solution

The fourth proportional to 4,815.30, 6,643.98 and 2,719.02 is: 3,751.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.30 : 6,643.98 = 2,719.02 : x
  2. Step 2: Convert to fraction form
    4,815.30/6,643.98 = 2,719.02/x
  3. Step 3: Cross multiply
    4,815.30x = 6,643.98 × 2,719.02
  4. Step 4: Simplify right side
    4,815.30x = 18,065,114.50
  5. Step 5: Solve for x
    x = 18,065,114.50/4,815.30
  6. Step 6: Final answer
    x = 3,751.61

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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.