Home / 3,938.04-5,429.14-3,095.50

Finding the Fourth Proportional to 3,938.04, 5,429.14 and 3,095.50

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Solution

The fourth proportional to 3,938.04, 5,429.14 and 3,095.50 is: 4,267.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.04 : 5,429.14 = 3,095.50 : x
  2. Step 2: Convert to fraction form
    3,938.04/5,429.14 = 3,095.50/x
  3. Step 3: Cross multiply
    3,938.04x = 5,429.14 × 3,095.50
  4. Step 4: Simplify right side
    3,938.04x = 16,805,902.87
  5. Step 5: Solve for x
    x = 16,805,902.87/3,938.04
  6. Step 6: Final answer
    x = 4,267.58

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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.