Home / 2,911.66-4,018.06-1,585.35

Finding the Fourth Proportional to 2,911.66, 4,018.06 and 1,585.35

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Solution

The fourth proportional to 2,911.66, 4,018.06 and 1,585.35 is: 2,187.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.66 : 4,018.06 = 1,585.35 : x
  2. Step 2: Convert to fraction form
    2,911.66/4,018.06 = 1,585.35/x
  3. Step 3: Cross multiply
    2,911.66x = 4,018.06 × 1,585.35
  4. Step 4: Simplify right side
    2,911.66x = 6,370,031.42
  5. Step 5: Solve for x
    x = 6,370,031.42/2,911.66
  6. Step 6: Final answer
    x = 2,187.77

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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.