Home / 2,962.99-4,089.01-1,636.78

Finding the Fourth Proportional to 2,962.99, 4,089.01 and 1,636.78

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Solution

The fourth proportional to 2,962.99, 4,089.01 and 1,636.78 is: 2,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,962.99 : 4,089.01 = 1,636.78 : x
  2. Step 2: Convert to fraction form
    2,962.99/4,089.01 = 1,636.78/x
  3. Step 3: Cross multiply
    2,962.99x = 4,089.01 × 1,636.78
  4. Step 4: Simplify right side
    2,962.99x = 6,692,787.23
  5. Step 5: Solve for x
    x = 6,692,787.23/2,962.99
  6. Step 6: Final answer
    x = 2,258.80

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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.