Home / 6,686.51-9,226.98-3,702.20

Finding the Fourth Proportional to 6,686.51, 9,226.98 and 3,702.20

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Solution

The fourth proportional to 6,686.51, 9,226.98 and 3,702.20 is: 5,108.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.51 : 9,226.98 = 3,702.20 : x
  2. Step 2: Convert to fraction form
    6,686.51/9,226.98 = 3,702.20/x
  3. Step 3: Cross multiply
    6,686.51x = 9,226.98 × 3,702.20
  4. Step 4: Simplify right side
    6,686.51x = 34,160,079.22
  5. Step 5: Solve for x
    x = 34,160,079.22/6,686.51
  6. Step 6: Final answer
    x = 5,108.81

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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.