Home / 4,756.40-7,134.60-1,982.15

Finding the Fourth Proportional to 4,756.40, 7,134.60 and 1,982.15

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Solution

The fourth proportional to 4,756.40, 7,134.60 and 1,982.15 is: 2,973.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,756.40 : 7,134.60 = 1,982.15 : x
  2. Step 2: Convert to fraction form
    4,756.40/7,134.60 = 1,982.15/x
  3. Step 3: Cross multiply
    4,756.40x = 7,134.60 × 1,982.15
  4. Step 4: Simplify right side
    4,756.40x = 14,141,847.39
  5. Step 5: Solve for x
    x = 14,141,847.39/4,756.40
  6. Step 6: Final answer
    x = 2,973.23

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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.