Home / 1,400.06-2,108.42-1,219.63

Finding the Fourth Proportional to 1,400.06, 2,108.42 and 1,219.63

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Solution

The fourth proportional to 1,400.06, 2,108.42 and 1,219.63 is: 1,836.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.06 : 2,108.42 = 1,219.63 : x
  2. Step 2: Convert to fraction form
    1,400.06/2,108.42 = 1,219.63/x
  3. Step 3: Cross multiply
    1,400.06x = 2,108.42 × 1,219.63
  4. Step 4: Simplify right side
    1,400.06x = 2,571,492.28
  5. Step 5: Solve for x
    x = 2,571,492.28/1,400.06
  6. Step 6: Final answer
    x = 1,836.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.