Home / 5,145.27-7,713.32-1,857.63

Finding the Fourth Proportional to 5,145.27, 7,713.32 and 1,857.63

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Solution

The fourth proportional to 5,145.27, 7,713.32 and 1,857.63 is: 2,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.27 : 7,713.32 = 1,857.63 : x
  2. Step 2: Convert to fraction form
    5,145.27/7,713.32 = 1,857.63/x
  3. Step 3: Cross multiply
    5,145.27x = 7,713.32 × 1,857.63
  4. Step 4: Simplify right side
    5,145.27x = 14,328,485.34
  5. Step 5: Solve for x
    x = 14,328,485.34/5,145.27
  6. Step 6: Final answer
    x = 2,784.79

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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.