Home / 7,210.50-10,809.30-3,460.21

Finding the Fourth Proportional to 7,210.50, 10,809.30 and 3,460.21

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Solution

The fourth proportional to 7,210.50, 10,809.30 and 3,460.21 is: 5,187.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.50 : 10,809.30 = 3,460.21 : x
  2. Step 2: Convert to fraction form
    7,210.50/10,809.30 = 3,460.21/x
  3. Step 3: Cross multiply
    7,210.50x = 10,809.30 × 3,460.21
  4. Step 4: Simplify right side
    7,210.50x = 37,402,447.95
  5. Step 5: Solve for x
    x = 37,402,447.95/7,210.50
  6. Step 6: Final answer
    x = 5,187.22

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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.