Home / 2,134.42-2,942.94-1,574.80

Finding the Fourth Proportional to 2,134.42, 2,942.94 and 1,574.80

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Solution

The fourth proportional to 2,134.42, 2,942.94 and 1,574.80 is: 2,171.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.42 : 2,942.94 = 1,574.80 : x
  2. Step 2: Convert to fraction form
    2,134.42/2,942.94 = 1,574.80/x
  3. Step 3: Cross multiply
    2,134.42x = 2,942.94 × 1,574.80
  4. Step 4: Simplify right side
    2,134.42x = 4,634,541.91
  5. Step 5: Solve for x
    x = 4,634,541.91/2,134.42
  6. Step 6: Final answer
    x = 2,171.34

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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.