Home / 3,720.48-5,581.30-1,528.62

Finding the Fourth Proportional to 3,720.48, 5,581.30 and 1,528.62

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Solution

The fourth proportional to 3,720.48, 5,581.30 and 1,528.62 is: 2,293.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.48 : 5,581.30 = 1,528.62 : x
  2. Step 2: Convert to fraction form
    3,720.48/5,581.30 = 1,528.62/x
  3. Step 3: Cross multiply
    3,720.48x = 5,581.30 × 1,528.62
  4. Step 4: Simplify right side
    3,720.48x = 8,531,686.81
  5. Step 5: Solve for x
    x = 8,531,686.81/3,720.48
  6. Step 6: Final answer
    x = 2,293.17

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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.