Home / 2,405.40-3,604.91-1,784.23

Finding the Fourth Proportional to 2,405.40, 3,604.91 and 1,784.23

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Solution

The fourth proportional to 2,405.40, 3,604.91 and 1,784.23 is: 2,673.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.40 : 3,604.91 = 1,784.23 : x
  2. Step 2: Convert to fraction form
    2,405.40/3,604.91 = 1,784.23/x
  3. Step 3: Cross multiply
    2,405.40x = 3,604.91 × 1,784.23
  4. Step 4: Simplify right side
    2,405.40x = 6,431,970.64
  5. Step 5: Solve for x
    x = 6,431,970.64/2,405.40
  6. Step 6: Final answer
    x = 2,673.98

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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.