Home / 4,820.15-7,230.53-1,657.78

Finding the Fourth Proportional to 4,820.15, 7,230.53 and 1,657.78

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Solution

The fourth proportional to 4,820.15, 7,230.53 and 1,657.78 is: 2,486.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820.15 : 7,230.53 = 1,657.78 : x
  2. Step 2: Convert to fraction form
    4,820.15/7,230.53 = 1,657.78/x
  3. Step 3: Cross multiply
    4,820.15x = 7,230.53 × 1,657.78
  4. Step 4: Simplify right side
    4,820.15x = 11,986,614.09
  5. Step 5: Solve for x
    x = 11,986,614.09/4,820.15
  6. Step 6: Final answer
    x = 2,486.77

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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.