Home / 1,517.07-2,090.84-1,123.41

Finding the Fourth Proportional to 1,517.07, 2,090.84 and 1,123.41

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Solution

The fourth proportional to 1,517.07, 2,090.84 and 1,123.41 is: 1,548.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.07 : 2,090.84 = 1,123.41 : x
  2. Step 2: Convert to fraction form
    1,517.07/2,090.84 = 1,123.41/x
  3. Step 3: Cross multiply
    1,517.07x = 2,090.84 × 1,123.41
  4. Step 4: Simplify right side
    1,517.07x = 2,348,864.95
  5. Step 5: Solve for x
    x = 2,348,864.95/1,517.07
  6. Step 6: Final answer
    x = 1,548.29

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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.