Home / 4,680.60-6,990.53-4,240.98

Finding the Fourth Proportional to 4,680.60, 6,990.53 and 4,240.98

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Solution

The fourth proportional to 4,680.60, 6,990.53 and 4,240.98 is: 6,333.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.60 : 6,990.53 = 4,240.98 : x
  2. Step 2: Convert to fraction form
    4,680.60/6,990.53 = 4,240.98/x
  3. Step 3: Cross multiply
    4,680.60x = 6,990.53 × 4,240.98
  4. Step 4: Simplify right side
    4,680.60x = 29,646,676.71
  5. Step 5: Solve for x
    x = 29,646,676.71/4,680.60
  6. Step 6: Final answer
    x = 6,333.95

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Half scale
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Double scale
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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.