Home / 4,213.19-6,312.60-2,978.23

Finding the Fourth Proportional to 4,213.19, 6,312.60 and 2,978.23

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Solution

The fourth proportional to 4,213.19, 6,312.60 and 2,978.23 is: 4,462.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.19 : 6,312.60 = 2,978.23 : x
  2. Step 2: Convert to fraction form
    4,213.19/6,312.60 = 2,978.23/x
  3. Step 3: Cross multiply
    4,213.19x = 6,312.60 × 2,978.23
  4. Step 4: Simplify right side
    4,213.19x = 18,800,374.70
  5. Step 5: Solve for x
    x = 18,800,374.70/4,213.19
  6. Step 6: Final answer
    x = 4,462.27

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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.