Home / 2,942.12-4,412.64-1,210.88

Finding the Fourth Proportional to 2,942.12, 4,412.64 and 1,210.88

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Solution

The fourth proportional to 2,942.12, 4,412.64 and 1,210.88 is: 1,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.12 : 4,412.64 = 1,210.88 : x
  2. Step 2: Convert to fraction form
    2,942.12/4,412.64 = 1,210.88/x
  3. Step 3: Cross multiply
    2,942.12x = 4,412.64 × 1,210.88
  4. Step 4: Simplify right side
    2,942.12x = 5,343,177.52
  5. Step 5: Solve for x
    x = 5,343,177.52/2,942.12
  6. Step 6: Final answer
    x = 1,816.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.