Home / 5,115.19-7,671.91-1,652.44

Finding the Fourth Proportional to 5,115.19, 7,671.91 and 1,652.44

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Solution

The fourth proportional to 5,115.19, 7,671.91 and 1,652.44 is: 2,478.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.19 : 7,671.91 = 1,652.44 : x
  2. Step 2: Convert to fraction form
    5,115.19/7,671.91 = 1,652.44/x
  3. Step 3: Cross multiply
    5,115.19x = 7,671.91 × 1,652.44
  4. Step 4: Simplify right side
    5,115.19x = 12,677,370.96
  5. Step 5: Solve for x
    x = 12,677,370.96/5,115.19
  6. Step 6: Final answer
    x = 2,478.38

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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.