Home / 7,219.93-10,828.35-4,215.97

Finding the Fourth Proportional to 7,219.93, 10,828.35 and 4,215.97

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Solution

The fourth proportional to 7,219.93, 10,828.35 and 4,215.97 is: 6,323.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.93 : 10,828.35 = 4,215.97 : x
  2. Step 2: Convert to fraction form
    7,219.93/10,828.35 = 4,215.97/x
  3. Step 3: Cross multiply
    7,219.93x = 10,828.35 × 4,215.97
  4. Step 4: Simplify right side
    7,219.93x = 45,651,998.75
  5. Step 5: Solve for x
    x = 45,651,998.75/7,219.93
  6. Step 6: Final answer
    x = 6,323.05

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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.