Home / 1,934.79-2,669.03-1,225.45

Finding the Fourth Proportional to 1,934.79, 2,669.03 and 1,225.45

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Solution

The fourth proportional to 1,934.79, 2,669.03 and 1,225.45 is: 1,690.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.79 : 2,669.03 = 1,225.45 : x
  2. Step 2: Convert to fraction form
    1,934.79/2,669.03 = 1,225.45/x
  3. Step 3: Cross multiply
    1,934.79x = 2,669.03 × 1,225.45
  4. Step 4: Simplify right side
    1,934.79x = 3,270,756.69
  5. Step 5: Solve for x
    x = 3,270,756.69/1,934.79
  6. Step 6: Final answer
    x = 1,690.50

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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.