Home / 4,688.45-7,031.72-1,725.88

Finding the Fourth Proportional to 4,688.45, 7,031.72 and 1,725.88

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Solution

The fourth proportional to 4,688.45, 7,031.72 and 1,725.88 is: 2,588.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688.45 : 7,031.72 = 1,725.88 : x
  2. Step 2: Convert to fraction form
    4,688.45/7,031.72 = 1,725.88/x
  3. Step 3: Cross multiply
    4,688.45x = 7,031.72 × 1,725.88
  4. Step 4: Simplify right side
    4,688.45x = 12,135,904.91
  5. Step 5: Solve for x
    x = 12,135,904.91/4,688.45
  6. Step 6: Final answer
    x = 2,588.47

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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.