Home / 3,190.19-4,402.55-1,864.22

Finding the Fourth Proportional to 3,190.19, 4,402.55 and 1,864.22

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Solution

The fourth proportional to 3,190.19, 4,402.55 and 1,864.22 is: 2,572.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.19 : 4,402.55 = 1,864.22 : x
  2. Step 2: Convert to fraction form
    3,190.19/4,402.55 = 1,864.22/x
  3. Step 3: Cross multiply
    3,190.19x = 4,402.55 × 1,864.22
  4. Step 4: Simplify right side
    3,190.19x = 8,207,304.41
  5. Step 5: Solve for x
    x = 8,207,304.41/3,190.19
  6. Step 6: Final answer
    x = 2,572.67

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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.