Home / 1,581.25-2,369.93-1,119.16

Finding the Fourth Proportional to 1,581.25, 2,369.93 and 1,119.16

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Solution

The fourth proportional to 1,581.25, 2,369.93 and 1,119.16 is: 1,677.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.25 : 2,369.93 = 1,119.16 : x
  2. Step 2: Convert to fraction form
    1,581.25/2,369.93 = 1,119.16/x
  3. Step 3: Cross multiply
    1,581.25x = 2,369.93 × 1,119.16
  4. Step 4: Simplify right side
    1,581.25x = 2,652,313.41
  5. Step 5: Solve for x
    x = 2,652,313.41/1,581.25
  6. Step 6: Final answer
    x = 1,677.36

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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.