Home / 10,688.28-16,031.22-2,897.70

Finding the Fourth Proportional to 10,688.28, 16,031.22 and 2,897.70

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Solution

The fourth proportional to 10,688.28, 16,031.22 and 2,897.70 is: 4,346.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.28 : 16,031.22 = 2,897.70 : x
  2. Step 2: Convert to fraction form
    10,688.28/16,031.22 = 2,897.70/x
  3. Step 3: Cross multiply
    10,688.28x = 16,031.22 × 2,897.70
  4. Step 4: Simplify right side
    10,688.28x = 46,453,666.19
  5. Step 5: Solve for x
    x = 46,453,666.19/10,688.28
  6. Step 6: Final answer
    x = 4,346.22

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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.