Home / 2,271.38-3,134.63-1,513.85

Finding the Fourth Proportional to 2,271.38, 3,134.63 and 1,513.85

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Solution

The fourth proportional to 2,271.38, 3,134.63 and 1,513.85 is: 2,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.38 : 3,134.63 = 1,513.85 : x
  2. Step 2: Convert to fraction form
    2,271.38/3,134.63 = 1,513.85/x
  3. Step 3: Cross multiply
    2,271.38x = 3,134.63 × 1,513.85
  4. Step 4: Simplify right side
    2,271.38x = 4,745,347.74
  5. Step 5: Solve for x
    x = 4,745,347.74/2,271.38
  6. Step 6: Final answer
    x = 2,089.20

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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.