Home / 4,689.49-7,032.07-2,931.79

Finding the Fourth Proportional to 4,689.49, 7,032.07 and 2,931.79

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Solution

The fourth proportional to 4,689.49, 7,032.07 and 2,931.79 is: 4,396.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.49 : 7,032.07 = 2,931.79 : x
  2. Step 2: Convert to fraction form
    4,689.49/7,032.07 = 2,931.79/x
  3. Step 3: Cross multiply
    4,689.49x = 7,032.07 × 2,931.79
  4. Step 4: Simplify right side
    4,689.49x = 20,616,552.51
  5. Step 5: Solve for x
    x = 20,616,552.51/4,689.49
  6. Step 6: Final answer
    x = 4,396.33

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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.