Home / 3,722.45-5,581.65-1,531.40

Finding the Fourth Proportional to 3,722.45, 5,581.65 and 1,531.40

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Solution

The fourth proportional to 3,722.45, 5,581.65 and 1,531.40 is: 2,296.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.45 : 5,581.65 = 1,531.40 : x
  2. Step 2: Convert to fraction form
    3,722.45/5,581.65 = 1,531.40/x
  3. Step 3: Cross multiply
    3,722.45x = 5,581.65 × 1,531.40
  4. Step 4: Simplify right side
    3,722.45x = 8,547,738.81
  5. Step 5: Solve for x
    x = 8,547,738.81/3,722.45
  6. Step 6: Final answer
    x = 2,296.27

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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.