Home / 3,521.79-5,281.14-1,056.81

Finding the Fourth Proportional to 3,521.79, 5,281.14 and 1,056.81

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Solution

The fourth proportional to 3,521.79, 5,281.14 and 1,056.81 is: 1,584.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.79 : 5,281.14 = 1,056.81 : x
  2. Step 2: Convert to fraction form
    3,521.79/5,281.14 = 1,056.81/x
  3. Step 3: Cross multiply
    3,521.79x = 5,281.14 × 1,056.81
  4. Step 4: Simplify right side
    3,521.79x = 5,581,161.56
  5. Step 5: Solve for x
    x = 5,581,161.56/3,521.79
  6. Step 6: Final answer
    x = 1,584.75

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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.