Home / 7,760.04-10,709.12-4,223.38

Finding the Fourth Proportional to 7,760.04, 10,709.12 and 4,223.38

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Solution

The fourth proportional to 7,760.04, 10,709.12 and 4,223.38 is: 5,828.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,760.04 : 10,709.12 = 4,223.38 : x
  2. Step 2: Convert to fraction form
    7,760.04/10,709.12 = 4,223.38/x
  3. Step 3: Cross multiply
    7,760.04x = 10,709.12 × 4,223.38
  4. Step 4: Simplify right side
    7,760.04x = 45,228,683.23
  5. Step 5: Solve for x
    x = 45,228,683.23/7,760.04
  6. Step 6: Final answer
    x = 5,828.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.