Home / 1,826.61-2,739.51-528.18

Finding the Fourth Proportional to 1,826.61, 2,739.51 and 528.18

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Solution

The fourth proportional to 1,826.61, 2,739.51 and 528.18 is: 792.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826.61 : 2,739.51 = 528.18 : x
  2. Step 2: Convert to fraction form
    1,826.61/2,739.51 = 528.18/x
  3. Step 3: Cross multiply
    1,826.61x = 2,739.51 × 528.18
  4. Step 4: Simplify right side
    1,826.61x = 1,446,954.39
  5. Step 5: Solve for x
    x = 1,446,954.39/1,826.61
  6. Step 6: Final answer
    x = 792.15

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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.