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Finding the Fourth Proportional to 6,303.86, 8,699.28 and 3,651.21

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Solution

The fourth proportional to 6,303.86, 8,699.28 and 3,651.21 is: 5,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,303.86 : 8,699.28 = 3,651.21 : x
  2. Step 2: Convert to fraction form
    6,303.86/8,699.28 = 3,651.21/x
  3. Step 3: Cross multiply
    6,303.86x = 8,699.28 × 3,651.21
  4. Step 4: Simplify right side
    6,303.86x = 31,762,854.63
  5. Step 5: Solve for x
    x = 31,762,854.63/6,303.86
  6. Step 6: Final answer
    x = 5,038.64

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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.