Home / 3,045.50-4,202.82-1,648.28

Finding the Fourth Proportional to 3,045.50, 4,202.82 and 1,648.28

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Solution

The fourth proportional to 3,045.50, 4,202.82 and 1,648.28 is: 2,274.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.50 : 4,202.82 = 1,648.28 : x
  2. Step 2: Convert to fraction form
    3,045.50/4,202.82 = 1,648.28/x
  3. Step 3: Cross multiply
    3,045.50x = 4,202.82 × 1,648.28
  4. Step 4: Simplify right side
    3,045.50x = 6,927,424.15
  5. Step 5: Solve for x
    x = 6,927,424.15/3,045.50
  6. Step 6: Final answer
    x = 2,274.64

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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.