Home / 3,415.37-5,087.74-3,312.11

Finding the Fourth Proportional to 3,415.37, 5,087.74 and 3,312.11

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Solution

The fourth proportional to 3,415.37, 5,087.74 and 3,312.11 is: 4,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.37 : 5,087.74 = 3,312.11 : x
  2. Step 2: Convert to fraction form
    3,415.37/5,087.74 = 3,312.11/x
  3. Step 3: Cross multiply
    3,415.37x = 5,087.74 × 3,312.11
  4. Step 4: Simplify right side
    3,415.37x = 16,851,137.98
  5. Step 5: Solve for x
    x = 16,851,137.98/3,415.37
  6. Step 6: Final answer
    x = 4,933.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.