Home / 4,087.47-6,129.67-1,313.43

Finding the Fourth Proportional to 4,087.47, 6,129.67 and 1,313.43

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Solution

The fourth proportional to 4,087.47, 6,129.67 and 1,313.43 is: 1,969.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.47 : 6,129.67 = 1,313.43 : x
  2. Step 2: Convert to fraction form
    4,087.47/6,129.67 = 1,313.43/x
  3. Step 3: Cross multiply
    4,087.47x = 6,129.67 × 1,313.43
  4. Step 4: Simplify right side
    4,087.47x = 8,050,892.47
  5. Step 5: Solve for x
    x = 8,050,892.47/4,087.47
  6. Step 6: Final answer
    x = 1,969.65

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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.