Home / 1,973.19-2,723.58-1,226.78

Finding the Fourth Proportional to 1,973.19, 2,723.58 and 1,226.78

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Solution

The fourth proportional to 1,973.19, 2,723.58 and 1,226.78 is: 1,693.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.19 : 2,723.58 = 1,226.78 : x
  2. Step 2: Convert to fraction form
    1,973.19/2,723.58 = 1,226.78/x
  3. Step 3: Cross multiply
    1,973.19x = 2,723.58 × 1,226.78
  4. Step 4: Simplify right side
    1,973.19x = 3,341,219.85
  5. Step 5: Solve for x
    x = 3,341,219.85/1,973.19
  6. Step 6: Final answer
    x = 1,693.31

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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.