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Finding the Fourth Proportional to 7,937.60, 11,903.36 and 3,774.40

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Solution

The fourth proportional to 7,937.60, 11,903.36 and 3,774.40 is: 5,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.60 : 11,903.36 = 3,774.40 : x
  2. Step 2: Convert to fraction form
    7,937.60/11,903.36 = 3,774.40/x
  3. Step 3: Cross multiply
    7,937.60x = 11,903.36 × 3,774.40
  4. Step 4: Simplify right side
    7,937.60x = 44,927,993.35
  5. Step 5: Solve for x
    x = 44,927,993.35/7,937.60
  6. Step 6: Final answer
    x = 5,660.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.