Home / 3,615.63-4,983.60-2,420.18

Finding the Fourth Proportional to 3,615.63, 4,983.60 and 2,420.18

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Solution

The fourth proportional to 3,615.63, 4,983.60 and 2,420.18 is: 3,335.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.63 : 4,983.60 = 2,420.18 : x
  2. Step 2: Convert to fraction form
    3,615.63/4,983.60 = 2,420.18/x
  3. Step 3: Cross multiply
    3,615.63x = 4,983.60 × 2,420.18
  4. Step 4: Simplify right side
    3,615.63x = 12,061,221.51
  5. Step 5: Solve for x
    x = 12,061,221.51/3,615.63
  6. Step 6: Final answer
    x = 3,335.86

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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.