Home / 5,210.86-7,810.80-3,236.50

Finding the Fourth Proportional to 5,210.86, 7,810.80 and 3,236.50

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Solution

The fourth proportional to 5,210.86, 7,810.80 and 3,236.50 is: 4,851.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.86 : 7,810.80 = 3,236.50 : x
  2. Step 2: Convert to fraction form
    5,210.86/7,810.80 = 3,236.50/x
  3. Step 3: Cross multiply
    5,210.86x = 7,810.80 × 3,236.50
  4. Step 4: Simplify right side
    5,210.86x = 25,279,654.20
  5. Step 5: Solve for x
    x = 25,279,654.20/5,210.86
  6. Step 6: Final answer
    x = 4,851.34

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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.