Home / 6,209.45-8,566.02-3,689.77

Finding the Fourth Proportional to 6,209.45, 8,566.02 and 3,689.77

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Solution

The fourth proportional to 6,209.45, 8,566.02 and 3,689.77 is: 5,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,209.45 : 8,566.02 = 3,689.77 : x
  2. Step 2: Convert to fraction form
    6,209.45/8,566.02 = 3,689.77/x
  3. Step 3: Cross multiply
    6,209.45x = 8,566.02 × 3,689.77
  4. Step 4: Simplify right side
    6,209.45x = 31,606,668.16
  5. Step 5: Solve for x
    x = 31,606,668.16/6,209.45
  6. Step 6: Final answer
    x = 5,090.10

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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.