Home / 2,257.16-3,113.21-1,509.81

Finding the Fourth Proportional to 2,257.16, 3,113.21 and 1,509.81

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Solution

The fourth proportional to 2,257.16, 3,113.21 and 1,509.81 is: 2,082.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.16 : 3,113.21 = 1,509.81 : x
  2. Step 2: Convert to fraction form
    2,257.16/3,113.21 = 1,509.81/x
  3. Step 3: Cross multiply
    2,257.16x = 3,113.21 × 1,509.81
  4. Step 4: Simplify right side
    2,257.16x = 4,700,348.04
  5. Step 5: Solve for x
    x = 4,700,348.04/2,257.16
  6. Step 6: Final answer
    x = 2,082.42

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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.