Home / 2,828.02-3,902.88-1,648.84

Finding the Fourth Proportional to 2,828.02, 3,902.88 and 1,648.84

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Solution

The fourth proportional to 2,828.02, 3,902.88 and 1,648.84 is: 2,275.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.02 : 3,902.88 = 1,648.84 : x
  2. Step 2: Convert to fraction form
    2,828.02/3,902.88 = 1,648.84/x
  3. Step 3: Cross multiply
    2,828.02x = 3,902.88 × 1,648.84
  4. Step 4: Simplify right side
    2,828.02x = 6,435,224.66
  5. Step 5: Solve for x
    x = 6,435,224.66/2,828.02
  6. Step 6: Final answer
    x = 2,275.52

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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.