Home / 1,447.01-2,170.71-581.25

Finding the Fourth Proportional to 1,447.01, 2,170.71 and 581.25

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Solution

The fourth proportional to 1,447.01, 2,170.71 and 581.25 is: 871.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.01 : 2,170.71 = 581.25 : x
  2. Step 2: Convert to fraction form
    1,447.01/2,170.71 = 581.25/x
  3. Step 3: Cross multiply
    1,447.01x = 2,170.71 × 581.25
  4. Step 4: Simplify right side
    1,447.01x = 1,261,725.19
  5. Step 5: Solve for x
    x = 1,261,725.19/1,447.01
  6. Step 6: Final answer
    x = 871.96

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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.