Home / 2,415.87-3,329.24-1,628.55

Finding the Fourth Proportional to 2,415.87, 3,329.24 and 1,628.55

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Solution

The fourth proportional to 2,415.87, 3,329.24 and 1,628.55 is: 2,244.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.87 : 3,329.24 = 1,628.55 : x
  2. Step 2: Convert to fraction form
    2,415.87/3,329.24 = 1,628.55/x
  3. Step 3: Cross multiply
    2,415.87x = 3,329.24 × 1,628.55
  4. Step 4: Simplify right side
    2,415.87x = 5,421,825.66
  5. Step 5: Solve for x
    x = 5,421,825.66/2,415.87
  6. Step 6: Final answer
    x = 2,244.25

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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.