Home / 3,960.34-5,461.64-3,400.62

Finding the Fourth Proportional to 3,960.34, 5,461.64 and 3,400.62

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Solution

The fourth proportional to 3,960.34, 5,461.64 and 3,400.62 is: 4,689.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.34 : 5,461.64 = 3,400.62 : x
  2. Step 2: Convert to fraction form
    3,960.34/5,461.64 = 3,400.62/x
  3. Step 3: Cross multiply
    3,960.34x = 5,461.64 × 3,400.62
  4. Step 4: Simplify right side
    3,960.34x = 18,572,962.22
  5. Step 5: Solve for x
    x = 18,572,962.22/3,960.34
  6. Step 6: Final answer
    x = 4,689.74

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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.