Home / 2,911.87-4,018.47-1,585.49

Finding the Fourth Proportional to 2,911.87, 4,018.47 and 1,585.49

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Solution

The fourth proportional to 2,911.87, 4,018.47 and 1,585.49 is: 2,188.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.87 : 4,018.47 = 1,585.49 : x
  2. Step 2: Convert to fraction form
    2,911.87/4,018.47 = 1,585.49/x
  3. Step 3: Cross multiply
    2,911.87x = 4,018.47 × 1,585.49
  4. Step 4: Simplify right side
    2,911.87x = 6,371,244.00
  5. Step 5: Solve for x
    x = 6,371,244.00/2,911.87
  6. Step 6: Final answer
    x = 2,188.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.