Home / 2,830.80-4,246.20-1,448.40

Finding the Fourth Proportional to 2,830.80, 4,246.20 and 1,448.40

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Solution

The fourth proportional to 2,830.80, 4,246.20 and 1,448.40 is: 2,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.80 : 4,246.20 = 1,448.40 : x
  2. Step 2: Convert to fraction form
    2,830.80/4,246.20 = 1,448.40/x
  3. Step 3: Cross multiply
    2,830.80x = 4,246.20 × 1,448.40
  4. Step 4: Simplify right side
    2,830.80x = 6,150,196.08
  5. Step 5: Solve for x
    x = 6,150,196.08/2,830.80
  6. Step 6: Final answer
    x = 2,172.60

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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.