Home / 1,742.74-2,408.81-1,531.33

Finding the Fourth Proportional to 1,742.74, 2,408.81 and 1,531.33

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Solution

The fourth proportional to 1,742.74, 2,408.81 and 1,531.33 is: 2,116.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.74 : 2,408.81 = 1,531.33 : x
  2. Step 2: Convert to fraction form
    1,742.74/2,408.81 = 1,531.33/x
  3. Step 3: Cross multiply
    1,742.74x = 2,408.81 × 1,531.33
  4. Step 4: Simplify right side
    1,742.74x = 3,688,669.34
  5. Step 5: Solve for x
    x = 3,688,669.34/1,742.74
  6. Step 6: Final answer
    x = 2,116.59

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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.