Home / 4,818.47-7,223.72-2,148.12

Finding the Fourth Proportional to 4,818.47, 7,223.72 and 2,148.12

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Solution

The fourth proportional to 4,818.47, 7,223.72 and 2,148.12 is: 3,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.47 : 7,223.72 = 2,148.12 : x
  2. Step 2: Convert to fraction form
    4,818.47/7,223.72 = 2,148.12/x
  3. Step 3: Cross multiply
    4,818.47x = 7,223.72 × 2,148.12
  4. Step 4: Simplify right side
    4,818.47x = 15,517,406.67
  5. Step 5: Solve for x
    x = 15,517,406.67/4,818.47
  6. Step 6: Final answer
    x = 3,220.40

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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.