Home / 5,290.35-7,297.20-3,398.95

Finding the Fourth Proportional to 5,290.35, 7,297.20 and 3,398.95

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Solution

The fourth proportional to 5,290.35, 7,297.20 and 3,398.95 is: 4,688.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.35 : 7,297.20 = 3,398.95 : x
  2. Step 2: Convert to fraction form
    5,290.35/7,297.20 = 3,398.95/x
  3. Step 3: Cross multiply
    5,290.35x = 7,297.20 × 3,398.95
  4. Step 4: Simplify right side
    5,290.35x = 24,802,827.06
  5. Step 5: Solve for x
    x = 24,802,827.06/5,290.35
  6. Step 6: Final answer
    x = 4,688.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.