Home / 3,315.24-4,972.74-1,123.80

Finding the Fourth Proportional to 3,315.24, 4,972.74 and 1,123.80

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Solution

The fourth proportional to 3,315.24, 4,972.74 and 1,123.80 is: 1,685.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.24 : 4,972.74 = 1,123.80 : x
  2. Step 2: Convert to fraction form
    3,315.24/4,972.74 = 1,123.80/x
  3. Step 3: Cross multiply
    3,315.24x = 4,972.74 × 1,123.80
  4. Step 4: Simplify right side
    3,315.24x = 5,588,365.21
  5. Step 5: Solve for x
    x = 5,588,365.21/3,315.24
  6. Step 6: Final answer
    x = 1,685.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.