Home / 2,420.24-3,631.60-2,238.80

Finding the Fourth Proportional to 2,420.24, 3,631.60 and 2,238.80

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Solution

The fourth proportional to 2,420.24, 3,631.60 and 2,238.80 is: 3,359.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.24 : 3,631.60 = 2,238.80 : x
  2. Step 2: Convert to fraction form
    2,420.24/3,631.60 = 2,238.80/x
  3. Step 3: Cross multiply
    2,420.24x = 3,631.60 × 2,238.80
  4. Step 4: Simplify right side
    2,420.24x = 8,130,426.08
  5. Step 5: Solve for x
    x = 8,130,426.08/2,420.24
  6. Step 6: Final answer
    x = 3,359.35

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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.