Home / 6,291.95-8,682.23-3,640.19

Finding the Fourth Proportional to 6,291.95, 8,682.23 and 3,640.19

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Solution

The fourth proportional to 6,291.95, 8,682.23 and 3,640.19 is: 5,023.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.95 : 8,682.23 = 3,640.19 : x
  2. Step 2: Convert to fraction form
    6,291.95/8,682.23 = 3,640.19/x
  3. Step 3: Cross multiply
    6,291.95x = 8,682.23 × 3,640.19
  4. Step 4: Simplify right side
    6,291.95x = 31,604,932.51
  5. Step 5: Solve for x
    x = 31,604,932.51/6,291.95
  6. Step 6: Final answer
    x = 5,023.08

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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.