Home / 4,687.69-7,031.57-1,400.81

Finding the Fourth Proportional to 4,687.69, 7,031.57 and 1,400.81

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Solution

The fourth proportional to 4,687.69, 7,031.57 and 1,400.81 is: 2,101.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.69 : 7,031.57 = 1,400.81 : x
  2. Step 2: Convert to fraction form
    4,687.69/7,031.57 = 1,400.81/x
  3. Step 3: Cross multiply
    4,687.69x = 7,031.57 × 1,400.81
  4. Step 4: Simplify right side
    4,687.69x = 9,849,893.57
  5. Step 5: Solve for x
    x = 9,849,893.57/4,687.69
  6. Step 6: Final answer
    x = 2,101.23

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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.