Home / 2,312.41-3,190.16-1,515.92

Finding the Fourth Proportional to 2,312.41, 3,190.16 and 1,515.92

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Solution

The fourth proportional to 2,312.41, 3,190.16 and 1,515.92 is: 2,091.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.41 : 3,190.16 = 1,515.92 : x
  2. Step 2: Convert to fraction form
    2,312.41/3,190.16 = 1,515.92/x
  3. Step 3: Cross multiply
    2,312.41x = 3,190.16 × 1,515.92
  4. Step 4: Simplify right side
    2,312.41x = 4,836,027.74
  5. Step 5: Solve for x
    x = 4,836,027.74/2,312.41
  6. Step 6: Final answer
    x = 2,091.34

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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.