Home / 5,420.51-7,479.10-3,297.09

Finding the Fourth Proportional to 5,420.51, 7,479.10 and 3,297.09

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Solution

The fourth proportional to 5,420.51, 7,479.10 and 3,297.09 is: 4,549.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.51 : 7,479.10 = 3,297.09 : x
  2. Step 2: Convert to fraction form
    5,420.51/7,479.10 = 3,297.09/x
  3. Step 3: Cross multiply
    5,420.51x = 7,479.10 × 3,297.09
  4. Step 4: Simplify right side
    5,420.51x = 24,659,265.82
  5. Step 5: Solve for x
    x = 24,659,265.82/5,420.51
  6. Step 6: Final answer
    x = 4,549.25

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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.