Home / 5,026.34-6,931.81-3,138.10

Finding the Fourth Proportional to 5,026.34, 6,931.81 and 3,138.10

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Solution

The fourth proportional to 5,026.34, 6,931.81 and 3,138.10 is: 4,327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,026.34 : 6,931.81 = 3,138.10 : x
  2. Step 2: Convert to fraction form
    5,026.34/6,931.81 = 3,138.10/x
  3. Step 3: Cross multiply
    5,026.34x = 6,931.81 × 3,138.10
  4. Step 4: Simplify right side
    5,026.34x = 21,752,699.55
  5. Step 5: Solve for x
    x = 21,752,699.55/5,026.34
  6. Step 6: Final answer
    x = 4,327.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.