Home / 6,291.07-8,682.19-3,638.52

Finding the Fourth Proportional to 6,291.07, 8,682.19 and 3,638.52

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Solution

The fourth proportional to 6,291.07, 8,682.19 and 3,638.52 is: 5,021.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.07 : 8,682.19 = 3,638.52 : x
  2. Step 2: Convert to fraction form
    6,291.07/8,682.19 = 3,638.52/x
  3. Step 3: Cross multiply
    6,291.07x = 8,682.19 × 3,638.52
  4. Step 4: Simplify right side
    6,291.07x = 31,590,312.86
  5. Step 5: Solve for x
    x = 31,590,312.86/6,291.07
  6. Step 6: Final answer
    x = 5,021.46

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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.