Home / 3,579.20-5,368.80-3,298.40

Finding the Fourth Proportional to 3,579.20, 5,368.80 and 3,298.40

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Solution

The fourth proportional to 3,579.20, 5,368.80 and 3,298.40 is: 4,947.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.20 : 5,368.80 = 3,298.40 : x
  2. Step 2: Convert to fraction form
    3,579.20/5,368.80 = 3,298.40/x
  3. Step 3: Cross multiply
    3,579.20x = 5,368.80 × 3,298.40
  4. Step 4: Simplify right side
    3,579.20x = 17,708,449.92
  5. Step 5: Solve for x
    x = 17,708,449.92/3,579.20
  6. Step 6: Final answer
    x = 4,947.60

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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.