Home / 5,421.29-7,479.18-3,326.63

Finding the Fourth Proportional to 5,421.29, 7,479.18 and 3,326.63

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Solution

The fourth proportional to 5,421.29, 7,479.18 and 3,326.63 is: 4,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.29 : 7,479.18 = 3,326.63 : x
  2. Step 2: Convert to fraction form
    5,421.29/7,479.18 = 3,326.63/x
  3. Step 3: Cross multiply
    5,421.29x = 7,479.18 × 3,326.63
  4. Step 4: Simplify right side
    5,421.29x = 24,880,427.17
  5. Step 5: Solve for x
    x = 24,880,427.17/5,421.29
  6. Step 6: Final answer
    x = 4,589.40

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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.