Home / 2,028.54-2,802.40-1,607.55

Finding the Fourth Proportional to 2,028.54, 2,802.40 and 1,607.55

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Solution

The fourth proportional to 2,028.54, 2,802.40 and 1,607.55 is: 2,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.54 : 2,802.40 = 1,607.55 : x
  2. Step 2: Convert to fraction form
    2,028.54/2,802.40 = 1,607.55/x
  3. Step 3: Cross multiply
    2,028.54x = 2,802.40 × 1,607.55
  4. Step 4: Simplify right side
    2,028.54x = 4,504,983.59
  5. Step 5: Solve for x
    x = 4,504,983.59/2,028.54
  6. Step 6: Final answer
    x = 2,220.80

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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.