Home / 2,974.19-4,104.81-1,715.45

Finding the Fourth Proportional to 2,974.19, 4,104.81 and 1,715.45

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Solution

The fourth proportional to 2,974.19, 4,104.81 and 1,715.45 is: 2,367.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.19 : 4,104.81 = 1,715.45 : x
  2. Step 2: Convert to fraction form
    2,974.19/4,104.81 = 1,715.45/x
  3. Step 3: Cross multiply
    2,974.19x = 4,104.81 × 1,715.45
  4. Step 4: Simplify right side
    2,974.19x = 7,041,575.79
  5. Step 5: Solve for x
    x = 7,041,575.79/2,974.19
  6. Step 6: Final answer
    x = 2,367.56

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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.