Home / 5,102.04-7,038.78-3,109.14

Finding the Fourth Proportional to 5,102.04, 7,038.78 and 3,109.14

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Solution

The fourth proportional to 5,102.04, 7,038.78 and 3,109.14 is: 4,289.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.04 : 7,038.78 = 3,109.14 : x
  2. Step 2: Convert to fraction form
    5,102.04/7,038.78 = 3,109.14/x
  3. Step 3: Cross multiply
    5,102.04x = 7,038.78 × 3,109.14
  4. Step 4: Simplify right side
    5,102.04x = 21,884,552.45
  5. Step 5: Solve for x
    x = 21,884,552.45/5,102.04
  6. Step 6: Final answer
    x = 4,289.37

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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.