Home / 7,529.40-11,298.15-3,147.30

Finding the Fourth Proportional to 7,529.40, 11,298.15 and 3,147.30

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Solution

The fourth proportional to 7,529.40, 11,298.15 and 3,147.30 is: 4,722.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,529.40 : 11,298.15 = 3,147.30 : x
  2. Step 2: Convert to fraction form
    7,529.40/11,298.15 = 3,147.30/x
  3. Step 3: Cross multiply
    7,529.40x = 11,298.15 × 3,147.30
  4. Step 4: Simplify right side
    7,529.40x = 35,558,667.50
  5. Step 5: Solve for x
    x = 35,558,667.50/7,529.40
  6. Step 6: Final answer
    x = 4,722.64

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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.