Home / 7,020.84-9,688.56-3,876.96

Finding the Fourth Proportional to 7,020.84, 9,688.56 and 3,876.96

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Solution

The fourth proportional to 7,020.84, 9,688.56 and 3,876.96 is: 5,350.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.84 : 9,688.56 = 3,876.96 : x
  2. Step 2: Convert to fraction form
    7,020.84/9,688.56 = 3,876.96/x
  3. Step 3: Cross multiply
    7,020.84x = 9,688.56 × 3,876.96
  4. Step 4: Simplify right side
    7,020.84x = 37,562,159.58
  5. Step 5: Solve for x
    x = 37,562,159.58/7,020.84
  6. Step 6: Final answer
    x = 5,350.09

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1.5x scale

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.