Home / 2,321.28-3,478.08-1,550.40

Finding the Fourth Proportional to 2,321.28, 3,478.08 and 1,550.40

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Solution

The fourth proportional to 2,321.28, 3,478.08 and 1,550.40 is: 2,323.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.28 : 3,478.08 = 1,550.40 : x
  2. Step 2: Convert to fraction form
    2,321.28/3,478.08 = 1,550.40/x
  3. Step 3: Cross multiply
    2,321.28x = 3,478.08 × 1,550.40
  4. Step 4: Simplify right side
    2,321.28x = 5,392,415.23
  5. Step 5: Solve for x
    x = 5,392,415.23/2,321.28
  6. Step 6: Final answer
    x = 2,323.04

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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.