Home / 2,386.75-3,581.57-1,018.75

Finding the Fourth Proportional to 2,386.75, 3,581.57 and 1,018.75

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Solution

The fourth proportional to 2,386.75, 3,581.57 and 1,018.75 is: 1,528.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.75 : 3,581.57 = 1,018.75 : x
  2. Step 2: Convert to fraction form
    2,386.75/3,581.57 = 1,018.75/x
  3. Step 3: Cross multiply
    2,386.75x = 3,581.57 × 1,018.75
  4. Step 4: Simplify right side
    2,386.75x = 3,648,724.44
  5. Step 5: Solve for x
    x = 3,648,724.44/2,386.75
  6. Step 6: Final answer
    x = 1,528.74

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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.