Home / 2,436.60-3,362.64-1,388.64

Finding the Fourth Proportional to 2,436.60, 3,362.64 and 1,388.64

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Solution

The fourth proportional to 2,436.60, 3,362.64 and 1,388.64 is: 1,916.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,436.60 : 3,362.64 = 1,388.64 : x
  2. Step 2: Convert to fraction form
    2,436.60/3,362.64 = 1,388.64/x
  3. Step 3: Cross multiply
    2,436.60x = 3,362.64 × 1,388.64
  4. Step 4: Simplify right side
    2,436.60x = 4,669,496.41
  5. Step 5: Solve for x
    x = 4,669,496.41/2,436.60
  6. Step 6: Final answer
    x = 1,916.40

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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.