Home / 1,528.83-2,293.36-418.43

Finding the Fourth Proportional to 1,528.83, 2,293.36 and 418.43

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Solution

The fourth proportional to 1,528.83, 2,293.36 and 418.43 is: 627.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.83 : 2,293.36 = 418.43 : x
  2. Step 2: Convert to fraction form
    1,528.83/2,293.36 = 418.43/x
  3. Step 3: Cross multiply
    1,528.83x = 2,293.36 × 418.43
  4. Step 4: Simplify right side
    1,528.83x = 959,615.31
  5. Step 5: Solve for x
    x = 959,615.31/1,528.83
  6. Step 6: Final answer
    x = 627.68

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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.