Home / 5,423.51-8,129.43-3,548.69

Finding the Fourth Proportional to 5,423.51, 8,129.43 and 3,548.69

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Solution

The fourth proportional to 5,423.51, 8,129.43 and 3,548.69 is: 5,319.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.51 : 8,129.43 = 3,548.69 : x
  2. Step 2: Convert to fraction form
    5,423.51/8,129.43 = 3,548.69/x
  3. Step 3: Cross multiply
    5,423.51x = 8,129.43 × 3,548.69
  4. Step 4: Simplify right side
    5,423.51x = 28,848,826.95
  5. Step 5: Solve for x
    x = 28,848,826.95/5,423.51
  6. Step 6: Final answer
    x = 5,319.22

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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.