Home / 3,147.60-4,740.13-2,741.64

Finding the Fourth Proportional to 3,147.60, 4,740.13 and 2,741.64

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Solution

The fourth proportional to 3,147.60, 4,740.13 and 2,741.64 is: 4,128.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.60 : 4,740.13 = 2,741.64 : x
  2. Step 2: Convert to fraction form
    3,147.60/4,740.13 = 2,741.64/x
  3. Step 3: Cross multiply
    3,147.60x = 4,740.13 × 2,741.64
  4. Step 4: Simplify right side
    3,147.60x = 12,995,730.01
  5. Step 5: Solve for x
    x = 12,995,730.01/3,147.60
  6. Step 6: Final answer
    x = 4,128.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.