Home / 5,912.40-8,154.84-3,816.12

Finding the Fourth Proportional to 5,912.40, 8,154.84 and 3,816.12

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Solution

The fourth proportional to 5,912.40, 8,154.84 and 3,816.12 is: 5,263.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,912.40 : 8,154.84 = 3,816.12 : x
  2. Step 2: Convert to fraction form
    5,912.40/8,154.84 = 3,816.12/x
  3. Step 3: Cross multiply
    5,912.40x = 8,154.84 × 3,816.12
  4. Step 4: Simplify right side
    5,912.40x = 31,119,848.02
  5. Step 5: Solve for x
    x = 31,119,848.02/5,912.40
  6. Step 6: Final answer
    x = 5,263.49

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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.