Home / 7,215.18-10,802.84-3,697.61

Finding the Fourth Proportional to 7,215.18, 10,802.84 and 3,697.61

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Solution

The fourth proportional to 7,215.18, 10,802.84 and 3,697.61 is: 5,536.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.18 : 10,802.84 = 3,697.61 : x
  2. Step 2: Convert to fraction form
    7,215.18/10,802.84 = 3,697.61/x
  3. Step 3: Cross multiply
    7,215.18x = 10,802.84 × 3,697.61
  4. Step 4: Simplify right side
    7,215.18x = 39,944,616.71
  5. Step 5: Solve for x
    x = 39,944,616.71/7,215.18
  6. Step 6: Final answer
    x = 5,536.19

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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.