Home / 2,946.42-4,066.12-1,620.15

Finding the Fourth Proportional to 2,946.42, 4,066.12 and 1,620.15

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Solution

The fourth proportional to 2,946.42, 4,066.12 and 1,620.15 is: 2,235.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.42 : 4,066.12 = 1,620.15 : x
  2. Step 2: Convert to fraction form
    2,946.42/4,066.12 = 1,620.15/x
  3. Step 3: Cross multiply
    2,946.42x = 4,066.12 × 1,620.15
  4. Step 4: Simplify right side
    2,946.42x = 6,587,711.10
  5. Step 5: Solve for x
    x = 6,587,711.10/2,946.42
  6. Step 6: Final answer
    x = 2,235.84

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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.