Home / 2,963.28-4,087.80-1,783.92

Finding the Fourth Proportional to 2,963.28, 4,087.80 and 1,783.92

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Solution

The fourth proportional to 2,963.28, 4,087.80 and 1,783.92 is: 2,460.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.28 : 4,087.80 = 1,783.92 : x
  2. Step 2: Convert to fraction form
    2,963.28/4,087.80 = 1,783.92/x
  3. Step 3: Cross multiply
    2,963.28x = 4,087.80 × 1,783.92
  4. Step 4: Simplify right side
    2,963.28x = 7,292,308.18
  5. Step 5: Solve for x
    x = 7,292,308.18/2,963.28
  6. Step 6: Final answer
    x = 2,460.89

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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.