Home / 7,215.86-10,823.67-2,285.49

Finding the Fourth Proportional to 7,215.86, 10,823.67 and 2,285.49

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Solution

The fourth proportional to 7,215.86, 10,823.67 and 2,285.49 is: 3,428.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.86 : 10,823.67 = 2,285.49 : x
  2. Step 2: Convert to fraction form
    7,215.86/10,823.67 = 2,285.49/x
  3. Step 3: Cross multiply
    7,215.86x = 10,823.67 × 2,285.49
  4. Step 4: Simplify right side
    7,215.86x = 24,737,378.12
  5. Step 5: Solve for x
    x = 24,737,378.12/7,215.86
  6. Step 6: Final answer
    x = 3,428.20

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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.