Home / 1,908.35-2,633.47-1,122.45

Finding the Fourth Proportional to 1,908.35, 2,633.47 and 1,122.45

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Solution

The fourth proportional to 1,908.35, 2,633.47 and 1,122.45 is: 1,548.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.35 : 2,633.47 = 1,122.45 : x
  2. Step 2: Convert to fraction form
    1,908.35/2,633.47 = 1,122.45/x
  3. Step 3: Cross multiply
    1,908.35x = 2,633.47 × 1,122.45
  4. Step 4: Simplify right side
    1,908.35x = 2,955,938.40
  5. Step 5: Solve for x
    x = 2,955,938.40/1,908.35
  6. Step 6: Final answer
    x = 1,548.95

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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.