Home / 3,116.60-4,680.30-1,658.60

Finding the Fourth Proportional to 3,116.60, 4,680.30 and 1,658.60

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Solution

The fourth proportional to 3,116.60, 4,680.30 and 1,658.60 is: 2,490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.60 : 4,680.30 = 1,658.60 : x
  2. Step 2: Convert to fraction form
    3,116.60/4,680.30 = 1,658.60/x
  3. Step 3: Cross multiply
    3,116.60x = 4,680.30 × 1,658.60
  4. Step 4: Simplify right side
    3,116.60x = 7,762,745.58
  5. Step 5: Solve for x
    x = 7,762,745.58/3,116.60
  6. Step 6: Final answer
    x = 2,490.77

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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.