Home / 2,130.71-3,195.52-899.03

Finding the Fourth Proportional to 2,130.71, 3,195.52 and 899.03

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Solution

The fourth proportional to 2,130.71, 3,195.52 and 899.03 is: 1,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.71 : 3,195.52 = 899.03 : x
  2. Step 2: Convert to fraction form
    2,130.71/3,195.52 = 899.03/x
  3. Step 3: Cross multiply
    2,130.71x = 3,195.52 × 899.03
  4. Step 4: Simplify right side
    2,130.71x = 2,872,874.09
  5. Step 5: Solve for x
    x = 2,872,874.09/2,130.71
  6. Step 6: Final answer
    x = 1,348.32

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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.