Home / 5,210.20-7,810.20-2,089.36

Finding the Fourth Proportional to 5,210.20, 7,810.20 and 2,089.36

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Solution

The fourth proportional to 5,210.20, 7,810.20 and 2,089.36 is: 3,131.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.20 : 7,810.20 = 2,089.36 : x
  2. Step 2: Convert to fraction form
    5,210.20/7,810.20 = 2,089.36/x
  3. Step 3: Cross multiply
    5,210.20x = 7,810.20 × 2,089.36
  4. Step 4: Simplify right side
    5,210.20x = 16,318,319.47
  5. Step 5: Solve for x
    x = 16,318,319.47/5,210.20
  6. Step 6: Final answer
    x = 3,131.99

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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.