Home / 6,981.60-10,472.49-1,787.34

Finding the Fourth Proportional to 6,981.60, 10,472.49 and 1,787.34

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Solution

The fourth proportional to 6,981.60, 10,472.49 and 1,787.34 is: 2,681.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.60 : 10,472.49 = 1,787.34 : x
  2. Step 2: Convert to fraction form
    6,981.60/10,472.49 = 1,787.34/x
  3. Step 3: Cross multiply
    6,981.60x = 10,472.49 × 1,787.34
  4. Step 4: Simplify right side
    6,981.60x = 18,717,900.28
  5. Step 5: Solve for x
    x = 18,717,900.28/6,981.60
  6. Step 6: Final answer
    x = 2,681.03

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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.