Home / 1,938.24-2,905.74-1,784.48

Finding the Fourth Proportional to 1,938.24, 2,905.74 and 1,784.48

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Solution

The fourth proportional to 1,938.24, 2,905.74 and 1,784.48 is: 2,675.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.24 : 2,905.74 = 1,784.48 : x
  2. Step 2: Convert to fraction form
    1,938.24/2,905.74 = 1,784.48/x
  3. Step 3: Cross multiply
    1,938.24x = 2,905.74 × 1,784.48
  4. Step 4: Simplify right side
    1,938.24x = 5,185,220.39
  5. Step 5: Solve for x
    x = 5,185,220.39/1,938.24
  6. Step 6: Final answer
    x = 2,675.22

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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.