Home / 1,528.68-2,107.57-1,508.02

Finding the Fourth Proportional to 1,528.68, 2,107.57 and 1,508.02

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Solution

The fourth proportional to 1,528.68, 2,107.57 and 1,508.02 is: 2,079.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.68 : 2,107.57 = 1,508.02 : x
  2. Step 2: Convert to fraction form
    1,528.68/2,107.57 = 1,508.02/x
  3. Step 3: Cross multiply
    1,528.68x = 2,107.57 × 1,508.02
  4. Step 4: Simplify right side
    1,528.68x = 3,178,257.71
  5. Step 5: Solve for x
    x = 3,178,257.71/1,528.68
  6. Step 6: Final answer
    x = 2,079.09

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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.