Home / 6,278.48-8,663.92-3,445.28

Finding the Fourth Proportional to 6,278.48, 8,663.92 and 3,445.28

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Solution

The fourth proportional to 6,278.48, 8,663.92 and 3,445.28 is: 4,754.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.48 : 8,663.92 = 3,445.28 : x
  2. Step 2: Convert to fraction form
    6,278.48/8,663.92 = 3,445.28/x
  3. Step 3: Cross multiply
    6,278.48x = 8,663.92 × 3,445.28
  4. Step 4: Simplify right side
    6,278.48x = 29,849,613.07
  5. Step 5: Solve for x
    x = 29,849,613.07/6,278.48
  6. Step 6: Final answer
    x = 4,754.27

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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.