Home / 3,479.60-5,219.36-1,400.16

Finding the Fourth Proportional to 3,479.60, 5,219.36 and 1,400.16

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Solution

The fourth proportional to 3,479.60, 5,219.36 and 1,400.16 is: 2,100.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.60 : 5,219.36 = 1,400.16 : x
  2. Step 2: Convert to fraction form
    3,479.60/5,219.36 = 1,400.16/x
  3. Step 3: Cross multiply
    3,479.60x = 5,219.36 × 1,400.16
  4. Step 4: Simplify right side
    3,479.60x = 7,307,939.10
  5. Step 5: Solve for x
    x = 7,307,939.10/3,479.60
  6. Step 6: Final answer
    x = 2,100.22

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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.