Home / 3,558.74-5,339.65-1,479.20

Finding the Fourth Proportional to 3,558.74, 5,339.65 and 1,479.20

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Solution

The fourth proportional to 3,558.74, 5,339.65 and 1,479.20 is: 2,219.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.74 : 5,339.65 = 1,479.20 : x
  2. Step 2: Convert to fraction form
    3,558.74/5,339.65 = 1,479.20/x
  3. Step 3: Cross multiply
    3,558.74x = 5,339.65 × 1,479.20
  4. Step 4: Simplify right side
    3,558.74x = 7,898,410.28
  5. Step 5: Solve for x
    x = 7,898,410.28/3,558.74
  6. Step 6: Final answer
    x = 2,219.44

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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.