Home / 3,158.93-4,356.90-2,415.35

Finding the Fourth Proportional to 3,158.93, 4,356.90 and 2,415.35

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Solution

The fourth proportional to 3,158.93, 4,356.90 and 2,415.35 is: 3,331.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.93 : 4,356.90 = 2,415.35 : x
  2. Step 2: Convert to fraction form
    3,158.93/4,356.90 = 2,415.35/x
  3. Step 3: Cross multiply
    3,158.93x = 4,356.90 × 2,415.35
  4. Step 4: Simplify right side
    3,158.93x = 10,523,449.31
  5. Step 5: Solve for x
    x = 10,523,449.31/3,158.93
  6. Step 6: Final answer
    x = 3,331.33

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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.