Home / 3,190.17-4,402.54-1,931.46

Finding the Fourth Proportional to 3,190.17, 4,402.54 and 1,931.46

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Solution

The fourth proportional to 3,190.17, 4,402.54 and 1,931.46 is: 2,665.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.17 : 4,402.54 = 1,931.46 : x
  2. Step 2: Convert to fraction form
    3,190.17/4,402.54 = 1,931.46/x
  3. Step 3: Cross multiply
    3,190.17x = 4,402.54 × 1,931.46
  4. Step 4: Simplify right side
    3,190.17x = 8,503,329.71
  5. Step 5: Solve for x
    x = 8,503,329.71/3,190.17
  6. Step 6: Final answer
    x = 2,665.48

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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.