Home / 2,871.84-3,963.60-1,630.24

Finding the Fourth Proportional to 2,871.84, 3,963.60 and 1,630.24

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Solution

The fourth proportional to 2,871.84, 3,963.60 and 1,630.24 is: 2,249.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.84 : 3,963.60 = 1,630.24 : x
  2. Step 2: Convert to fraction form
    2,871.84/3,963.60 = 1,630.24/x
  3. Step 3: Cross multiply
    2,871.84x = 3,963.60 × 1,630.24
  4. Step 4: Simplify right side
    2,871.84x = 6,461,619.26
  5. Step 5: Solve for x
    x = 6,461,619.26/2,871.84
  6. Step 6: Final answer
    x = 2,249.99

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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.