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Finding the Fourth Proportional to 2,031.40, 2,703.50 and 2,031.40

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Solution

The fourth proportional to 2,031.40, 2,703.50 and 2,031.40 is: 2,703.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.40 : 2,703.50 = 2,031.40 : x
  2. Step 2: Convert to fraction form
    2,031.40/2,703.50 = 2,031.40/x
  3. Step 3: Cross multiply
    2,031.40x = 2,703.50 × 2,031.40
  4. Step 4: Simplify right side
    2,031.40x = 5,491,889.90
  5. Step 5: Solve for x
    x = 5,491,889.90/2,031.40
  6. Step 6: Final answer
    x = 2,703.50

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.