Home / 2,087.29-2,880.54-1,406.85

Finding the Fourth Proportional to 2,087.29, 2,880.54 and 1,406.85

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Solution

The fourth proportional to 2,087.29, 2,880.54 and 1,406.85 is: 1,941.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.29 : 2,880.54 = 1,406.85 : x
  2. Step 2: Convert to fraction form
    2,087.29/2,880.54 = 1,406.85/x
  3. Step 3: Cross multiply
    2,087.29x = 2,880.54 × 1,406.85
  4. Step 4: Simplify right side
    2,087.29x = 4,052,487.70
  5. Step 5: Solve for x
    x = 4,052,487.70/2,087.29
  6. Step 6: Final answer
    x = 1,941.51

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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.