Home / 7,122.79-10,688.01-3,660.04

Finding the Fourth Proportional to 7,122.79, 10,688.01 and 3,660.04

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Solution

The fourth proportional to 7,122.79, 10,688.01 and 3,660.04 is: 5,492.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.79 : 10,688.01 = 3,660.04 : x
  2. Step 2: Convert to fraction form
    7,122.79/10,688.01 = 3,660.04/x
  3. Step 3: Cross multiply
    7,122.79x = 10,688.01 × 3,660.04
  4. Step 4: Simplify right side
    7,122.79x = 39,118,544.12
  5. Step 5: Solve for x
    x = 39,118,544.12/7,122.79
  6. Step 6: Final answer
    x = 5,492.03

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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.