Home / 5,156.03-7,121.12-3,484.34

Finding the Fourth Proportional to 5,156.03, 7,121.12 and 3,484.34

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Solution

The fourth proportional to 5,156.03, 7,121.12 and 3,484.34 is: 4,812.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.03 : 7,121.12 = 3,484.34 : x
  2. Step 2: Convert to fraction form
    5,156.03/7,121.12 = 3,484.34/x
  3. Step 3: Cross multiply
    5,156.03x = 7,121.12 × 3,484.34
  4. Step 4: Simplify right side
    5,156.03x = 24,812,350.23
  5. Step 5: Solve for x
    x = 24,812,350.23/5,156.03
  6. Step 6: Final answer
    x = 4,812.30

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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.