Home / 4,755.21-7,133.36-1,981.50

Finding the Fourth Proportional to 4,755.21, 7,133.36 and 1,981.50

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Solution

The fourth proportional to 4,755.21, 7,133.36 and 1,981.50 is: 2,972.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.21 : 7,133.36 = 1,981.50 : x
  2. Step 2: Convert to fraction form
    4,755.21/7,133.36 = 1,981.50/x
  3. Step 3: Cross multiply
    4,755.21x = 7,133.36 × 1,981.50
  4. Step 4: Simplify right side
    4,755.21x = 14,134,742.93
  5. Step 5: Solve for x
    x = 14,134,742.93/4,755.21
  6. Step 6: Final answer
    x = 2,972.48

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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.