Home / 3,125.84-4,309.19-1,930.02

Finding the Fourth Proportional to 3,125.84, 4,309.19 and 1,930.02

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Solution

The fourth proportional to 3,125.84, 4,309.19 and 1,930.02 is: 2,660.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.84 : 4,309.19 = 1,930.02 : x
  2. Step 2: Convert to fraction form
    3,125.84/4,309.19 = 1,930.02/x
  3. Step 3: Cross multiply
    3,125.84x = 4,309.19 × 1,930.02
  4. Step 4: Simplify right side
    3,125.84x = 8,316,813.23
  5. Step 5: Solve for x
    x = 8,316,813.23/3,125.84
  6. Step 6: Final answer
    x = 2,660.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.