Home / 4,815.90-7,219.05-2,214.30

Finding the Fourth Proportional to 4,815.90, 7,219.05 and 2,214.30

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Solution

The fourth proportional to 4,815.90, 7,219.05 and 2,214.30 is: 3,319.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.90 : 7,219.05 = 2,214.30 : x
  2. Step 2: Convert to fraction form
    4,815.90/7,219.05 = 2,214.30/x
  3. Step 3: Cross multiply
    4,815.90x = 7,219.05 × 2,214.30
  4. Step 4: Simplify right side
    4,815.90x = 15,985,142.42
  5. Step 5: Solve for x
    x = 15,985,142.42/4,815.90
  6. Step 6: Final answer
    x = 3,319.24

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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.