Home / 3,615.32-4,991.29-2,290.16

Finding the Fourth Proportional to 3,615.32, 4,991.29 and 2,290.16

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Solution

The fourth proportional to 3,615.32, 4,991.29 and 2,290.16 is: 3,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.32 : 4,991.29 = 2,290.16 : x
  2. Step 2: Convert to fraction form
    3,615.32/4,991.29 = 2,290.16/x
  3. Step 3: Cross multiply
    3,615.32x = 4,991.29 × 2,290.16
  4. Step 4: Simplify right side
    3,615.32x = 11,430,852.71
  5. Step 5: Solve for x
    x = 11,430,852.71/3,615.32
  6. Step 6: Final answer
    x = 3,161.78

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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.