Home / 4,213.80-6,319.10-1,402.10

Finding the Fourth Proportional to 4,213.80, 6,319.10 and 1,402.10

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Solution

The fourth proportional to 4,213.80, 6,319.10 and 1,402.10 is: 2,102.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.80 : 6,319.10 = 1,402.10 : x
  2. Step 2: Convert to fraction form
    4,213.80/6,319.10 = 1,402.10/x
  3. Step 3: Cross multiply
    4,213.80x = 6,319.10 × 1,402.10
  4. Step 4: Simplify right side
    4,213.80x = 8,860,010.11
  5. Step 5: Solve for x
    x = 8,860,010.11/4,213.80
  6. Step 6: Final answer
    x = 2,102.62

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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.