Home / 3,615.30-4,991.43-2,953.74

Finding the Fourth Proportional to 3,615.30, 4,991.43 and 2,953.74

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Solution

The fourth proportional to 3,615.30, 4,991.43 and 2,953.74 is: 4,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.30 : 4,991.43 = 2,953.74 : x
  2. Step 2: Convert to fraction form
    3,615.30/4,991.43 = 2,953.74/x
  3. Step 3: Cross multiply
    3,615.30x = 4,991.43 × 2,953.74
  4. Step 4: Simplify right side
    3,615.30x = 14,743,386.45
  5. Step 5: Solve for x
    x = 14,743,386.45/3,615.30
  6. Step 6: Final answer
    x = 4,078.05

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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.