Home / 2,974.89-4,104.75-1,715.55

Finding the Fourth Proportional to 2,974.89, 4,104.75 and 1,715.55

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Solution

The fourth proportional to 2,974.89, 4,104.75 and 1,715.55 is: 2,367.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.89 : 4,104.75 = 1,715.55 : x
  2. Step 2: Convert to fraction form
    2,974.89/4,104.75 = 1,715.55/x
  3. Step 3: Cross multiply
    2,974.89x = 4,104.75 × 1,715.55
  4. Step 4: Simplify right side
    2,974.89x = 7,041,903.86
  5. Step 5: Solve for x
    x = 7,041,903.86/2,974.89
  6. Step 6: Final answer
    x = 2,367.11

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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.