Home / 2,406.12-3,320.49-1,358.20

Finding the Fourth Proportional to 2,406.12, 3,320.49 and 1,358.20

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Solution

The fourth proportional to 2,406.12, 3,320.49 and 1,358.20 is: 1,874.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406.12 : 3,320.49 = 1,358.20 : x
  2. Step 2: Convert to fraction form
    2,406.12/3,320.49 = 1,358.20/x
  3. Step 3: Cross multiply
    2,406.12x = 3,320.49 × 1,358.20
  4. Step 4: Simplify right side
    2,406.12x = 4,509,889.52
  5. Step 5: Solve for x
    x = 4,509,889.52/2,406.12
  6. Step 6: Final answer
    x = 1,874.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.