Home / 2,837.20-4,255.80-1,962.40

Finding the Fourth Proportional to 2,837.20, 4,255.80 and 1,962.40

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Solution

The fourth proportional to 2,837.20, 4,255.80 and 1,962.40 is: 2,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,837.20 : 4,255.80 = 1,962.40 : x
  2. Step 2: Convert to fraction form
    2,837.20/4,255.80 = 1,962.40/x
  3. Step 3: Cross multiply
    2,837.20x = 4,255.80 × 1,962.40
  4. Step 4: Simplify right side
    2,837.20x = 8,351,581.92
  5. Step 5: Solve for x
    x = 8,351,581.92/2,837.20
  6. Step 6: Final answer
    x = 2,943.60

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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.