Home / 2,946.45-4,066.11-1,620.18

Finding the Fourth Proportional to 2,946.45, 4,066.11 and 1,620.18

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Solution

The fourth proportional to 2,946.45, 4,066.11 and 1,620.18 is: 2,235.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.45 : 4,066.11 = 1,620.18 : x
  2. Step 2: Convert to fraction form
    2,946.45/4,066.11 = 1,620.18/x
  3. Step 3: Cross multiply
    2,946.45x = 4,066.11 × 1,620.18
  4. Step 4: Simplify right side
    2,946.45x = 6,587,830.10
  5. Step 5: Solve for x
    x = 6,587,830.10/2,946.45
  6. Step 6: Final answer
    x = 2,235.85

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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.