Home / 2,039.28-3,058.98-578.40

Finding the Fourth Proportional to 2,039.28, 3,058.98 and 578.40

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Solution

The fourth proportional to 2,039.28, 3,058.98 and 578.40 is: 867.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.28 : 3,058.98 = 578.40 : x
  2. Step 2: Convert to fraction form
    2,039.28/3,058.98 = 578.40/x
  3. Step 3: Cross multiply
    2,039.28x = 3,058.98 × 578.40
  4. Step 4: Simplify right side
    2,039.28x = 1,769,314.03
  5. Step 5: Solve for x
    x = 1,769,314.03/2,039.28
  6. Step 6: Final answer
    x = 867.62

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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.