Home / 4,087.30-6,131.88-1,490.22

Finding the Fourth Proportional to 4,087.30, 6,131.88 and 1,490.22

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Solution

The fourth proportional to 4,087.30, 6,131.88 and 1,490.22 is: 2,235.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.30 : 6,131.88 = 1,490.22 : x
  2. Step 2: Convert to fraction form
    4,087.30/6,131.88 = 1,490.22/x
  3. Step 3: Cross multiply
    4,087.30x = 6,131.88 × 1,490.22
  4. Step 4: Simplify right side
    4,087.30x = 9,137,850.21
  5. Step 5: Solve for x
    x = 9,137,850.21/4,087.30
  6. Step 6: Final answer
    x = 2,235.67

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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.