Home / 4,213.12-6,320.43-1,440.10

Finding the Fourth Proportional to 4,213.12, 6,320.43 and 1,440.10

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Solution

The fourth proportional to 4,213.12, 6,320.43 and 1,440.10 is: 2,160.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.12 : 6,320.43 = 1,440.10 : x
  2. Step 2: Convert to fraction form
    4,213.12/6,320.43 = 1,440.10/x
  3. Step 3: Cross multiply
    4,213.12x = 6,320.43 × 1,440.10
  4. Step 4: Simplify right side
    4,213.12x = 9,102,051.24
  5. Step 5: Solve for x
    x = 9,102,051.24/4,213.12
  6. Step 6: Final answer
    x = 2,160.41

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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.