Home / 7,581.60-11,370.81-2,900.05

Finding the Fourth Proportional to 7,581.60, 11,370.81 and 2,900.05

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Solution

The fourth proportional to 7,581.60, 11,370.81 and 2,900.05 is: 4,349.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.60 : 11,370.81 = 2,900.05 : x
  2. Step 2: Convert to fraction form
    7,581.60/11,370.81 = 2,900.05/x
  3. Step 3: Cross multiply
    7,581.60x = 11,370.81 × 2,900.05
  4. Step 4: Simplify right side
    7,581.60x = 32,975,939.48
  5. Step 5: Solve for x
    x = 32,975,939.48/7,581.60
  6. Step 6: Final answer
    x = 4,349.47

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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.