Home / 5,085.74-7,628.87-1,578.17

Finding the Fourth Proportional to 5,085.74, 7,628.87 and 1,578.17

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Solution

The fourth proportional to 5,085.74, 7,628.87 and 1,578.17 is: 2,367.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.74 : 7,628.87 = 1,578.17 : x
  2. Step 2: Convert to fraction form
    5,085.74/7,628.87 = 1,578.17/x
  3. Step 3: Cross multiply
    5,085.74x = 7,628.87 × 1,578.17
  4. Step 4: Simplify right side
    5,085.74x = 12,039,619.57
  5. Step 5: Solve for x
    x = 12,039,619.57/5,085.74
  6. Step 6: Final answer
    x = 2,367.33

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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.