Home / 2,406.30-3,320.64-1,358.28

Finding the Fourth Proportional to 2,406.30, 3,320.64 and 1,358.28

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Solution

The fourth proportional to 2,406.30, 3,320.64 and 1,358.28 is: 1,874.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406.30 : 3,320.64 = 1,358.28 : x
  2. Step 2: Convert to fraction form
    2,406.30/3,320.64 = 1,358.28/x
  3. Step 3: Cross multiply
    2,406.30x = 3,320.64 × 1,358.28
  4. Step 4: Simplify right side
    2,406.30x = 4,510,358.90
  5. Step 5: Solve for x
    x = 4,510,358.90/2,406.30
  6. Step 6: Final answer
    x = 1,874.40

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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.