Home / 4,760.55-7,140.78-1,297.80

Finding the Fourth Proportional to 4,760.55, 7,140.78 and 1,297.80

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Solution

The fourth proportional to 4,760.55, 7,140.78 and 1,297.80 is: 1,946.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,760.55 : 7,140.78 = 1,297.80 : x
  2. Step 2: Convert to fraction form
    4,760.55/7,140.78 = 1,297.80/x
  3. Step 3: Cross multiply
    4,760.55x = 7,140.78 × 1,297.80
  4. Step 4: Simplify right side
    4,760.55x = 9,267,304.28
  5. Step 5: Solve for x
    x = 9,267,304.28/4,760.55
  6. Step 6: Final answer
    x = 1,946.69

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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.