Home / 3,688.35-5,529.51-1,715.22

Finding the Fourth Proportional to 3,688.35, 5,529.51 and 1,715.22

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Solution

The fourth proportional to 3,688.35, 5,529.51 and 1,715.22 is: 2,571.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.35 : 5,529.51 = 1,715.22 : x
  2. Step 2: Convert to fraction form
    3,688.35/5,529.51 = 1,715.22/x
  3. Step 3: Cross multiply
    3,688.35x = 5,529.51 × 1,715.22
  4. Step 4: Simplify right side
    3,688.35x = 9,484,298.49
  5. Step 5: Solve for x
    x = 9,484,298.49/3,688.35
  6. Step 6: Final answer
    x = 2,571.42

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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.