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Finding the Fourth Proportional to 7,219.71, 10,828.86 and 4,894.66

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Solution

The fourth proportional to 7,219.71, 10,828.86 and 4,894.66 is: 7,341.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.71 : 10,828.86 = 4,894.66 : x
  2. Step 2: Convert to fraction form
    7,219.71/10,828.86 = 4,894.66/x
  3. Step 3: Cross multiply
    7,219.71x = 10,828.86 × 4,894.66
  4. Step 4: Simplify right side
    7,219.71x = 53,003,587.89
  5. Step 5: Solve for x
    x = 53,003,587.89/7,219.71
  6. Step 6: Final answer
    x = 7,341.51

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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.