Home / 1,719.42-2,572.98-1,489.11

Finding the Fourth Proportional to 1,719.42, 2,572.98 and 1,489.11

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Solution

The fourth proportional to 1,719.42, 2,572.98 and 1,489.11 is: 2,228.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.42 : 2,572.98 = 1,489.11 : x
  2. Step 2: Convert to fraction form
    1,719.42/2,572.98 = 1,489.11/x
  3. Step 3: Cross multiply
    1,719.42x = 2,572.98 × 1,489.11
  4. Step 4: Simplify right side
    1,719.42x = 3,831,450.25
  5. Step 5: Solve for x
    x = 3,831,450.25/1,719.42
  6. Step 6: Final answer
    x = 2,228.34

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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.