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Finding the Fourth Proportional to 6,479.60, 8,941.44 and 3,646.48

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Solution

The fourth proportional to 6,479.60, 8,941.44 and 3,646.48 is: 5,031.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.60 : 8,941.44 = 3,646.48 : x
  2. Step 2: Convert to fraction form
    6,479.60/8,941.44 = 3,646.48/x
  3. Step 3: Cross multiply
    6,479.60x = 8,941.44 × 3,646.48
  4. Step 4: Simplify right side
    6,479.60x = 32,604,782.13
  5. Step 5: Solve for x
    x = 32,604,782.13/6,479.60
  6. Step 6: Final answer
    x = 5,031.91

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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.