Home / 3,946.55-5,918.20-1,480.10

Finding the Fourth Proportional to 3,946.55, 5,918.20 and 1,480.10

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Solution

The fourth proportional to 3,946.55, 5,918.20 and 1,480.10 is: 2,219.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.55 : 5,918.20 = 1,480.10 : x
  2. Step 2: Convert to fraction form
    3,946.55/5,918.20 = 1,480.10/x
  3. Step 3: Cross multiply
    3,946.55x = 5,918.20 × 1,480.10
  4. Step 4: Simplify right side
    3,946.55x = 8,759,494.53
  5. Step 5: Solve for x
    x = 8,759,494.53/3,946.55
  6. Step 6: Final answer
    x = 2,219.53

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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.