Home / 3,315.12-4,574.23-1,898.56

Finding the Fourth Proportional to 3,315.12, 4,574.23 and 1,898.56

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Solution

The fourth proportional to 3,315.12, 4,574.23 and 1,898.56 is: 2,619.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.12 : 4,574.23 = 1,898.56 : x
  2. Step 2: Convert to fraction form
    3,315.12/4,574.23 = 1,898.56/x
  3. Step 3: Cross multiply
    3,315.12x = 4,574.23 × 1,898.56
  4. Step 4: Simplify right side
    3,315.12x = 8,684,450.11
  5. Step 5: Solve for x
    x = 8,684,450.11/3,315.12
  6. Step 6: Final answer
    x = 2,619.65

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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.