Home / 2,891.37-4,337.06-1,431.55

Finding the Fourth Proportional to 2,891.37, 4,337.06 and 1,431.55

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Solution

The fourth proportional to 2,891.37, 4,337.06 and 1,431.55 is: 2,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.37 : 4,337.06 = 1,431.55 : x
  2. Step 2: Convert to fraction form
    2,891.37/4,337.06 = 1,431.55/x
  3. Step 3: Cross multiply
    2,891.37x = 4,337.06 × 1,431.55
  4. Step 4: Simplify right side
    2,891.37x = 6,208,718.24
  5. Step 5: Solve for x
    x = 6,208,718.24/2,891.37
  6. Step 6: Final answer
    x = 2,147.33

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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.