Home / 6,445.08-9,667.60-3,157.28

Finding the Fourth Proportional to 6,445.08, 9,667.60 and 3,157.28

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Solution

The fourth proportional to 6,445.08, 9,667.60 and 3,157.28 is: 4,735.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445.08 : 9,667.60 = 3,157.28 : x
  2. Step 2: Convert to fraction form
    6,445.08/9,667.60 = 3,157.28/x
  3. Step 3: Cross multiply
    6,445.08x = 9,667.60 × 3,157.28
  4. Step 4: Simplify right side
    6,445.08x = 30,523,320.13
  5. Step 5: Solve for x
    x = 30,523,320.13/6,445.08
  6. Step 6: Final answer
    x = 4,735.91

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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.