Home / 3,688.34-5,528.81-1,715.36

Finding the Fourth Proportional to 3,688.34, 5,528.81 and 1,715.36

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Solution

The fourth proportional to 3,688.34, 5,528.81 and 1,715.36 is: 2,571.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.34 : 5,528.81 = 1,715.36 : x
  2. Step 2: Convert to fraction form
    3,688.34/5,528.81 = 1,715.36/x
  3. Step 3: Cross multiply
    3,688.34x = 5,528.81 × 1,715.36
  4. Step 4: Simplify right side
    3,688.34x = 9,483,876.17
  5. Step 5: Solve for x
    x = 9,483,876.17/3,688.34
  6. Step 6: Final answer
    x = 2,571.32

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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.