Home / 2,136.16-2,949.28-1,637.88

Finding the Fourth Proportional to 2,136.16, 2,949.28 and 1,637.88

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Solution

The fourth proportional to 2,136.16, 2,949.28 and 1,637.88 is: 2,261.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.16 : 2,949.28 = 1,637.88 : x
  2. Step 2: Convert to fraction form
    2,136.16/2,949.28 = 1,637.88/x
  3. Step 3: Cross multiply
    2,136.16x = 2,949.28 × 1,637.88
  4. Step 4: Simplify right side
    2,136.16x = 4,830,566.73
  5. Step 5: Solve for x
    x = 4,830,566.73/2,136.16
  6. Step 6: Final answer
    x = 2,261.33

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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.