Home / 4,645.31-6,411.75-2,875.91

Finding the Fourth Proportional to 4,645.31, 6,411.75 and 2,875.91

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Solution

The fourth proportional to 4,645.31, 6,411.75 and 2,875.91 is: 3,969.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,645.31 : 6,411.75 = 2,875.91 : x
  2. Step 2: Convert to fraction form
    4,645.31/6,411.75 = 2,875.91/x
  3. Step 3: Cross multiply
    4,645.31x = 6,411.75 × 2,875.91
  4. Step 4: Simplify right side
    4,645.31x = 18,439,583.88
  5. Step 5: Solve for x
    x = 18,439,583.88/4,645.31
  6. Step 6: Final answer
    x = 3,969.51

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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.