Home / 3,146.69-4,719.33-1,909.67

Finding the Fourth Proportional to 3,146.69, 4,719.33 and 1,909.67

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Solution

The fourth proportional to 3,146.69, 4,719.33 and 1,909.67 is: 2,864.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.69 : 4,719.33 = 1,909.67 : x
  2. Step 2: Convert to fraction form
    3,146.69/4,719.33 = 1,909.67/x
  3. Step 3: Cross multiply
    3,146.69x = 4,719.33 × 1,909.67
  4. Step 4: Simplify right side
    3,146.69x = 9,012,339.32
  5. Step 5: Solve for x
    x = 9,012,339.32/3,146.69
  6. Step 6: Final answer
    x = 2,864.07

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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.