Home / 5,090.28-7,636.86-2,169

Finding the Fourth Proportional to 5,090.28, 7,636.86 and 2,169

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Solution

The fourth proportional to 5,090.28, 7,636.86 and 2,169 is: 3,254.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.28 : 7,636.86 = 2,169 : x
  2. Step 2: Convert to fraction form
    5,090.28/7,636.86 = 2,169/x
  3. Step 3: Cross multiply
    5,090.28x = 7,636.86 × 2,169
  4. Step 4: Simplify right side
    5,090.28x = 16,564,349.34
  5. Step 5: Solve for x
    x = 16,564,349.34/5,090.28
  6. Step 6: Final answer
    x = 3,254.11

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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.