Home / 7,215.67-10,823.19-2,285.20

Finding the Fourth Proportional to 7,215.67, 10,823.19 and 2,285.20

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Solution

The fourth proportional to 7,215.67, 10,823.19 and 2,285.20 is: 3,427.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.67 : 10,823.19 = 2,285.20 : x
  2. Step 2: Convert to fraction form
    7,215.67/10,823.19 = 2,285.20/x
  3. Step 3: Cross multiply
    7,215.67x = 10,823.19 × 2,285.20
  4. Step 4: Simplify right side
    7,215.67x = 24,733,153.79
  5. Step 5: Solve for x
    x = 24,733,153.79/7,215.67
  6. Step 6: Final answer
    x = 3,427.70

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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.