Home / 4,680.35-6,990.17-4,240.72

Finding the Fourth Proportional to 4,680.35, 6,990.17 and 4,240.72

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Solution

The fourth proportional to 4,680.35, 6,990.17 and 4,240.72 is: 6,333.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.35 : 6,990.17 = 4,240.72 : x
  2. Step 2: Convert to fraction form
    4,680.35/6,990.17 = 4,240.72/x
  3. Step 3: Cross multiply
    4,680.35x = 6,990.17 × 4,240.72
  4. Step 4: Simplify right side
    4,680.35x = 29,643,318.77
  5. Step 5: Solve for x
    x = 29,643,318.77/4,680.35
  6. Step 6: Final answer
    x = 6,333.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.