Home / 1,721.10-2,580.51-625.34

Finding the Fourth Proportional to 1,721.10, 2,580.51 and 625.34

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Solution

The fourth proportional to 1,721.10, 2,580.51 and 625.34 is: 937.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.10 : 2,580.51 = 625.34 : x
  2. Step 2: Convert to fraction form
    1,721.10/2,580.51 = 625.34/x
  3. Step 3: Cross multiply
    1,721.10x = 2,580.51 × 625.34
  4. Step 4: Simplify right side
    1,721.10x = 1,613,683.22
  5. Step 5: Solve for x
    x = 1,613,683.22/1,721.10
  6. Step 6: Final answer
    x = 937.59

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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.