Home / 2,964.07-4,090.46-1,917.95

Finding the Fourth Proportional to 2,964.07, 4,090.46 and 1,917.95

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Solution

The fourth proportional to 2,964.07, 4,090.46 and 1,917.95 is: 2,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.07 : 4,090.46 = 1,917.95 : x
  2. Step 2: Convert to fraction form
    2,964.07/4,090.46 = 1,917.95/x
  3. Step 3: Cross multiply
    2,964.07x = 4,090.46 × 1,917.95
  4. Step 4: Simplify right side
    2,964.07x = 7,845,297.76
  5. Step 5: Solve for x
    x = 7,845,297.76/2,964.07
  6. Step 6: Final answer
    x = 2,646.80

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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.