Home / 1,973.79-2,723.76-1,089.59

Finding the Fourth Proportional to 1,973.79, 2,723.76 and 1,089.59

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Solution

The fourth proportional to 1,973.79, 2,723.76 and 1,089.59 is: 1,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.79 : 2,723.76 = 1,089.59 : x
  2. Step 2: Convert to fraction form
    1,973.79/2,723.76 = 1,089.59/x
  3. Step 3: Cross multiply
    1,973.79x = 2,723.76 × 1,089.59
  4. Step 4: Simplify right side
    1,973.79x = 2,967,783.36
  5. Step 5: Solve for x
    x = 2,967,783.36/1,973.79
  6. Step 6: Final answer
    x = 1,503.60

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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.