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Finding the Fourth Proportional to 3,018.64, 4,527.48 and 826.86

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Solution

The fourth proportional to 3,018.64, 4,527.48 and 826.86 is: 1,240.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.64 : 4,527.48 = 826.86 : x
  2. Step 2: Convert to fraction form
    3,018.64/4,527.48 = 826.86/x
  3. Step 3: Cross multiply
    3,018.64x = 4,527.48 × 826.86
  4. Step 4: Simplify right side
    3,018.64x = 3,743,565.34
  5. Step 5: Solve for x
    x = 3,743,565.34/3,018.64
  6. Step 6: Final answer
    x = 1,240.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.