Home / 5,075.15-6,999.17-3,186.91

Finding the Fourth Proportional to 5,075.15, 6,999.17 and 3,186.91

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Solution

The fourth proportional to 5,075.15, 6,999.17 and 3,186.91 is: 4,395.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.15 : 6,999.17 = 3,186.91 : x
  2. Step 2: Convert to fraction form
    5,075.15/6,999.17 = 3,186.91/x
  3. Step 3: Cross multiply
    5,075.15x = 6,999.17 × 3,186.91
  4. Step 4: Simplify right side
    5,075.15x = 22,305,673.93
  5. Step 5: Solve for x
    x = 22,305,673.93/5,075.15
  6. Step 6: Final answer
    x = 4,395.08

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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.