Home / 4,820.40-7,218.45-3,060.05

Finding the Fourth Proportional to 4,820.40, 7,218.45 and 3,060.05

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Solution

The fourth proportional to 4,820.40, 7,218.45 and 3,060.05 is: 4,582.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820.40 : 7,218.45 = 3,060.05 : x
  2. Step 2: Convert to fraction form
    4,820.40/7,218.45 = 3,060.05/x
  3. Step 3: Cross multiply
    4,820.40x = 7,218.45 × 3,060.05
  4. Step 4: Simplify right side
    4,820.40x = 22,088,781.83
  5. Step 5: Solve for x
    x = 22,088,781.83/4,820.40
  6. Step 6: Final answer
    x = 4,582.35

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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.