Home / 5,137.10-7,705.65-3,679.10

Finding the Fourth Proportional to 5,137.10, 7,705.65 and 3,679.10

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Solution

The fourth proportional to 5,137.10, 7,705.65 and 3,679.10 is: 5,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.10 : 7,705.65 = 3,679.10 : x
  2. Step 2: Convert to fraction form
    5,137.10/7,705.65 = 3,679.10/x
  3. Step 3: Cross multiply
    5,137.10x = 7,705.65 × 3,679.10
  4. Step 4: Simplify right side
    5,137.10x = 28,349,818.39
  5. Step 5: Solve for x
    x = 28,349,818.39/5,137.10
  6. Step 6: Final answer
    x = 5,518.65

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1.5x scale

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.