Home / 2,455.60-3,685.80-1,224.40

Finding the Fourth Proportional to 2,455.60, 3,685.80 and 1,224.40

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Solution

The fourth proportional to 2,455.60, 3,685.80 and 1,224.40 is: 1,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.60 : 3,685.80 = 1,224.40 : x
  2. Step 2: Convert to fraction form
    2,455.60/3,685.80 = 1,224.40/x
  3. Step 3: Cross multiply
    2,455.60x = 3,685.80 × 1,224.40
  4. Step 4: Simplify right side
    2,455.60x = 4,512,893.52
  5. Step 5: Solve for x
    x = 4,512,893.52/2,455.60
  6. Step 6: Final answer
    x = 1,837.80

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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.