Home / 4,087.55-6,131.47-1,313.85

Finding the Fourth Proportional to 4,087.55, 6,131.47 and 1,313.85

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Solution

The fourth proportional to 4,087.55, 6,131.47 and 1,313.85 is: 1,970.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.55 : 6,131.47 = 1,313.85 : x
  2. Step 2: Convert to fraction form
    4,087.55/6,131.47 = 1,313.85/x
  3. Step 3: Cross multiply
    4,087.55x = 6,131.47 × 1,313.85
  4. Step 4: Simplify right side
    4,087.55x = 8,055,828.57
  5. Step 5: Solve for x
    x = 8,055,828.57/4,087.55
  6. Step 6: Final answer
    x = 1,970.82

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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.