Home / 1,573.35-2,171.22-865.24

Finding the Fourth Proportional to 1,573.35, 2,171.22 and 865.24

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Solution

The fourth proportional to 1,573.35, 2,171.22 and 865.24 is: 1,194.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.35 : 2,171.22 = 865.24 : x
  2. Step 2: Convert to fraction form
    1,573.35/2,171.22 = 865.24/x
  3. Step 3: Cross multiply
    1,573.35x = 2,171.22 × 865.24
  4. Step 4: Simplify right side
    1,573.35x = 1,878,626.39
  5. Step 5: Solve for x
    x = 1,878,626.39/1,573.35
  6. Step 6: Final answer
    x = 1,194.03

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1.5x scale

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.