Home / 4,520.86-6,781.35-2,970.72

Finding the Fourth Proportional to 4,520.86, 6,781.35 and 2,970.72

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Solution

The fourth proportional to 4,520.86, 6,781.35 and 2,970.72 is: 4,456.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,520.86 : 6,781.35 = 2,970.72 : x
  2. Step 2: Convert to fraction form
    4,520.86/6,781.35 = 2,970.72/x
  3. Step 3: Cross multiply
    4,520.86x = 6,781.35 × 2,970.72
  4. Step 4: Simplify right side
    4,520.86x = 20,145,492.07
  5. Step 5: Solve for x
    x = 20,145,492.07/4,520.86
  6. Step 6: Final answer
    x = 4,456.12

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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.