Home / 3,157.20-4,735.80-965.93

Finding the Fourth Proportional to 3,157.20, 4,735.80 and 965.93

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Solution

The fourth proportional to 3,157.20, 4,735.80 and 965.93 is: 1,448.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.20 : 4,735.80 = 965.93 : x
  2. Step 2: Convert to fraction form
    3,157.20/4,735.80 = 965.93/x
  3. Step 3: Cross multiply
    3,157.20x = 4,735.80 × 965.93
  4. Step 4: Simplify right side
    3,157.20x = 4,574,451.29
  5. Step 5: Solve for x
    x = 4,574,451.29/3,157.20
  6. Step 6: Final answer
    x = 1,448.90

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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.