Home / 4,687.79-7,031.40-1,567.46

Finding the Fourth Proportional to 4,687.79, 7,031.40 and 1,567.46

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Solution

The fourth proportional to 4,687.79, 7,031.40 and 1,567.46 is: 2,351.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.79 : 7,031.40 = 1,567.46 : x
  2. Step 2: Convert to fraction form
    4,687.79/7,031.40 = 1,567.46/x
  3. Step 3: Cross multiply
    4,687.79x = 7,031.40 × 1,567.46
  4. Step 4: Simplify right side
    4,687.79x = 11,021,403.09
  5. Step 5: Solve for x
    x = 11,021,403.09/4,687.79
  6. Step 6: Final answer
    x = 2,351.09

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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.