Home / 1,523.45-2,100.44-1,243.40

Finding the Fourth Proportional to 1,523.45, 2,100.44 and 1,243.40

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Solution

The fourth proportional to 1,523.45, 2,100.44 and 1,243.40 is: 1,714.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,523.45 : 2,100.44 = 1,243.40 : x
  2. Step 2: Convert to fraction form
    1,523.45/2,100.44 = 1,243.40/x
  3. Step 3: Cross multiply
    1,523.45x = 2,100.44 × 1,243.40
  4. Step 4: Simplify right side
    1,523.45x = 2,611,679.70
  5. Step 5: Solve for x
    x = 2,611,679.70/1,523.45
  6. Step 6: Final answer
    x = 1,714.32

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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.