Home / 4,787.45-7,148.89-3,911.67

Finding the Fourth Proportional to 4,787.45, 7,148.89 and 3,911.67

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Solution

The fourth proportional to 4,787.45, 7,148.89 and 3,911.67 is: 5,841.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.45 : 7,148.89 = 3,911.67 : x
  2. Step 2: Convert to fraction form
    4,787.45/7,148.89 = 3,911.67/x
  3. Step 3: Cross multiply
    4,787.45x = 7,148.89 × 3,911.67
  4. Step 4: Simplify right side
    4,787.45x = 27,964,088.77
  5. Step 5: Solve for x
    x = 27,964,088.77/4,787.45
  6. Step 6: Final answer
    x = 5,841.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.