Home / 7,983.60-11,977.20-2,437.20

Finding the Fourth Proportional to 7,983.60, 11,977.20 and 2,437.20

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Solution

The fourth proportional to 7,983.60, 11,977.20 and 2,437.20 is: 3,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.60 : 11,977.20 = 2,437.20 : x
  2. Step 2: Convert to fraction form
    7,983.60/11,977.20 = 2,437.20/x
  3. Step 3: Cross multiply
    7,983.60x = 11,977.20 × 2,437.20
  4. Step 4: Simplify right side
    7,983.60x = 29,190,831.84
  5. Step 5: Solve for x
    x = 29,190,831.84/7,983.60
  6. Step 6: Final answer
    x = 3,656.35

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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.