Home / 4,811.26-7,214.19-1,690.40

Finding the Fourth Proportional to 4,811.26, 7,214.19 and 1,690.40

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Solution

The fourth proportional to 4,811.26, 7,214.19 and 1,690.40 is: 2,534.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.26 : 7,214.19 = 1,690.40 : x
  2. Step 2: Convert to fraction form
    4,811.26/7,214.19 = 1,690.40/x
  3. Step 3: Cross multiply
    4,811.26x = 7,214.19 × 1,690.40
  4. Step 4: Simplify right side
    4,811.26x = 12,194,866.78
  5. Step 5: Solve for x
    x = 12,194,866.78/4,811.26
  6. Step 6: Final answer
    x = 2,534.65

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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.