Home / 3,116.70-4,681.55-2,630.70

Finding the Fourth Proportional to 3,116.70, 4,681.55 and 2,630.70

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Solution

The fourth proportional to 3,116.70, 4,681.55 and 2,630.70 is: 3,951.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.70 : 4,681.55 = 2,630.70 : x
  2. Step 2: Convert to fraction form
    3,116.70/4,681.55 = 2,630.70/x
  3. Step 3: Cross multiply
    3,116.70x = 4,681.55 × 2,630.70
  4. Step 4: Simplify right side
    3,116.70x = 12,315,753.59
  5. Step 5: Solve for x
    x = 12,315,753.59/3,116.70
  6. Step 6: Final answer
    x = 3,951.54

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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.