Home / 4,687.63-7,031.42-1,400.72

Finding the Fourth Proportional to 4,687.63, 7,031.42 and 1,400.72

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Solution

The fourth proportional to 4,687.63, 7,031.42 and 1,400.72 is: 2,101.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.63 : 7,031.42 = 1,400.72 : x
  2. Step 2: Convert to fraction form
    4,687.63/7,031.42 = 1,400.72/x
  3. Step 3: Cross multiply
    4,687.63x = 7,031.42 × 1,400.72
  4. Step 4: Simplify right side
    4,687.63x = 9,849,018.97
  5. Step 5: Solve for x
    x = 9,849,018.97/4,687.63
  6. Step 6: Final answer
    x = 2,101.07

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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.