Home / 4,742.26-7,113.52-1,279.50

Finding the Fourth Proportional to 4,742.26, 7,113.52 and 1,279.50

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Solution

The fourth proportional to 4,742.26, 7,113.52 and 1,279.50 is: 1,919.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.26 : 7,113.52 = 1,279.50 : x
  2. Step 2: Convert to fraction form
    4,742.26/7,113.52 = 1,279.50/x
  3. Step 3: Cross multiply
    4,742.26x = 7,113.52 × 1,279.50
  4. Step 4: Simplify right side
    4,742.26x = 9,101,748.84
  5. Step 5: Solve for x
    x = 9,101,748.84/4,742.26
  6. Step 6: Final answer
    x = 1,919.29

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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.