Home / 4,739.60-7,109.39-1,276.85

Finding the Fourth Proportional to 4,739.60, 7,109.39 and 1,276.85

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Solution

The fourth proportional to 4,739.60, 7,109.39 and 1,276.85 is: 1,915.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.60 : 7,109.39 = 1,276.85 : x
  2. Step 2: Convert to fraction form
    4,739.60/7,109.39 = 1,276.85/x
  3. Step 3: Cross multiply
    4,739.60x = 7,109.39 × 1,276.85
  4. Step 4: Simplify right side
    4,739.60x = 9,077,592.27
  5. Step 5: Solve for x
    x = 9,077,592.27/4,739.60
  6. Step 6: Final answer
    x = 1,915.27

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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.