Home / 3,190.59-4,402.90-1,865.16

Finding the Fourth Proportional to 3,190.59, 4,402.90 and 1,865.16

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Solution

The fourth proportional to 3,190.59, 4,402.90 and 1,865.16 is: 2,573.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.59 : 4,402.90 = 1,865.16 : x
  2. Step 2: Convert to fraction form
    3,190.59/4,402.90 = 1,865.16/x
  3. Step 3: Cross multiply
    3,190.59x = 4,402.90 × 1,865.16
  4. Step 4: Simplify right side
    3,190.59x = 8,212,088.29
  5. Step 5: Solve for x
    x = 8,212,088.29/3,190.59
  6. Step 6: Final answer
    x = 2,573.85

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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.