Home / 5,886.38-8,127.30-4,120.38

Finding the Fourth Proportional to 5,886.38, 8,127.30 and 4,120.38

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Solution

The fourth proportional to 5,886.38, 8,127.30 and 4,120.38 is: 5,689.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,886.38 : 8,127.30 = 4,120.38 : x
  2. Step 2: Convert to fraction form
    5,886.38/8,127.30 = 4,120.38/x
  3. Step 3: Cross multiply
    5,886.38x = 8,127.30 × 4,120.38
  4. Step 4: Simplify right side
    5,886.38x = 33,487,564.37
  5. Step 5: Solve for x
    x = 33,487,564.37/5,886.38
  6. Step 6: Final answer
    x = 5,689.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.