Home / 3,397.43-4,688.12-2,070.86

Finding the Fourth Proportional to 3,397.43, 4,688.12 and 2,070.86

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Solution

The fourth proportional to 3,397.43, 4,688.12 and 2,070.86 is: 2,857.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.43 : 4,688.12 = 2,070.86 : x
  2. Step 2: Convert to fraction form
    3,397.43/4,688.12 = 2,070.86/x
  3. Step 3: Cross multiply
    3,397.43x = 4,688.12 × 2,070.86
  4. Step 4: Simplify right side
    3,397.43x = 9,708,406.39
  5. Step 5: Solve for x
    x = 9,708,406.39/3,397.43
  6. Step 6: Final answer
    x = 2,857.58

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1.5x scale

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.