Home / 2,427.96-3,639.48-946.80

Finding the Fourth Proportional to 2,427.96, 3,639.48 and 946.80

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Solution

The fourth proportional to 2,427.96, 3,639.48 and 946.80 is: 1,419.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.96 : 3,639.48 = 946.80 : x
  2. Step 2: Convert to fraction form
    2,427.96/3,639.48 = 946.80/x
  3. Step 3: Cross multiply
    2,427.96x = 3,639.48 × 946.80
  4. Step 4: Simplify right side
    2,427.96x = 3,445,859.66
  5. Step 5: Solve for x
    x = 3,445,859.66/2,427.96
  6. Step 6: Final answer
    x = 1,419.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.