Home / 2,261.60-3,392.40-1,899.80

Finding the Fourth Proportional to 2,261.60, 3,392.40 and 1,899.80

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Solution

The fourth proportional to 2,261.60, 3,392.40 and 1,899.80 is: 2,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.60 : 3,392.40 = 1,899.80 : x
  2. Step 2: Convert to fraction form
    2,261.60/3,392.40 = 1,899.80/x
  3. Step 3: Cross multiply
    2,261.60x = 3,392.40 × 1,899.80
  4. Step 4: Simplify right side
    2,261.60x = 6,444,881.52
  5. Step 5: Solve for x
    x = 6,444,881.52/2,261.60
  6. Step 6: Final answer
    x = 2,849.70

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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.