Home / 5,410.64-8,115.15-1,712.39

Finding the Fourth Proportional to 5,410.64, 8,115.15 and 1,712.39

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Solution

The fourth proportional to 5,410.64, 8,115.15 and 1,712.39 is: 2,568.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,410.64 : 8,115.15 = 1,712.39 : x
  2. Step 2: Convert to fraction form
    5,410.64/8,115.15 = 1,712.39/x
  3. Step 3: Cross multiply
    5,410.64x = 8,115.15 × 1,712.39
  4. Step 4: Simplify right side
    5,410.64x = 13,896,299.57
  5. Step 5: Solve for x
    x = 13,896,299.57/5,410.64
  6. Step 6: Final answer
    x = 2,568.33

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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.