Home / 5,284.58-7,931.79-2,689.46

Finding the Fourth Proportional to 5,284.58, 7,931.79 and 2,689.46

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Solution

The fourth proportional to 5,284.58, 7,931.79 and 2,689.46 is: 4,036.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284.58 : 7,931.79 = 2,689.46 : x
  2. Step 2: Convert to fraction form
    5,284.58/7,931.79 = 2,689.46/x
  3. Step 3: Cross multiply
    5,284.58x = 7,931.79 × 2,689.46
  4. Step 4: Simplify right side
    5,284.58x = 21,332,231.93
  5. Step 5: Solve for x
    x = 21,332,231.93/5,284.58
  6. Step 6: Final answer
    x = 4,036.69

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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.