Home / 3,090.06-4,265.64-1,972.46

Finding the Fourth Proportional to 3,090.06, 4,265.64 and 1,972.46

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Solution

The fourth proportional to 3,090.06, 4,265.64 and 1,972.46 is: 2,722.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.06 : 4,265.64 = 1,972.46 : x
  2. Step 2: Convert to fraction form
    3,090.06/4,265.64 = 1,972.46/x
  3. Step 3: Cross multiply
    3,090.06x = 4,265.64 × 1,972.46
  4. Step 4: Simplify right side
    3,090.06x = 8,413,782.95
  5. Step 5: Solve for x
    x = 8,413,782.95/3,090.06
  6. Step 6: Final answer
    x = 2,722.85

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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.