Home / 2,386.87-3,577.57-999.95

Finding the Fourth Proportional to 2,386.87, 3,577.57 and 999.95

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Solution

The fourth proportional to 2,386.87, 3,577.57 and 999.95 is: 1,498.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.87 : 3,577.57 = 999.95 : x
  2. Step 2: Convert to fraction form
    2,386.87/3,577.57 = 999.95/x
  3. Step 3: Cross multiply
    2,386.87x = 3,577.57 × 999.95
  4. Step 4: Simplify right side
    2,386.87x = 3,577,370.73
  5. Step 5: Solve for x
    x = 3,577,370.73/2,386.87
  6. Step 6: Final answer
    x = 1,498.77

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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.