Home / 2,430.80-3,350.28-1,644.56

Finding the Fourth Proportional to 2,430.80, 3,350.28 and 1,644.56

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Solution

The fourth proportional to 2,430.80, 3,350.28 and 1,644.56 is: 2,266.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.80 : 3,350.28 = 1,644.56 : x
  2. Step 2: Convert to fraction form
    2,430.80/3,350.28 = 1,644.56/x
  3. Step 3: Cross multiply
    2,430.80x = 3,350.28 × 1,644.56
  4. Step 4: Simplify right side
    2,430.80x = 5,509,736.48
  5. Step 5: Solve for x
    x = 5,509,736.48/2,430.80
  6. Step 6: Final answer
    x = 2,266.64

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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.