Home / 2,528.79-3,489.36-1,533.90

Finding the Fourth Proportional to 2,528.79, 3,489.36 and 1,533.90

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Solution

The fourth proportional to 2,528.79, 3,489.36 and 1,533.90 is: 2,116.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.79 : 3,489.36 = 1,533.90 : x
  2. Step 2: Convert to fraction form
    2,528.79/3,489.36 = 1,533.90/x
  3. Step 3: Cross multiply
    2,528.79x = 3,489.36 × 1,533.90
  4. Step 4: Simplify right side
    2,528.79x = 5,352,329.30
  5. Step 5: Solve for x
    x = 5,352,329.30/2,528.79
  6. Step 6: Final answer
    x = 2,116.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.