Home / 2,087.46-2,878.34-1,424.70

Finding the Fourth Proportional to 2,087.46, 2,878.34 and 1,424.70

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Solution

The fourth proportional to 2,087.46, 2,878.34 and 1,424.70 is: 1,964.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.46 : 2,878.34 = 1,424.70 : x
  2. Step 2: Convert to fraction form
    2,087.46/2,878.34 = 1,424.70/x
  3. Step 3: Cross multiply
    2,087.46x = 2,878.34 × 1,424.70
  4. Step 4: Simplify right side
    2,087.46x = 4,100,771.00
  5. Step 5: Solve for x
    x = 4,100,771.00/2,087.46
  6. Step 6: Final answer
    x = 1,964.48

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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.