Home / 2,271.54-3,134.75-1,276.84

Finding the Fourth Proportional to 2,271.54, 3,134.75 and 1,276.84

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Solution

The fourth proportional to 2,271.54, 3,134.75 and 1,276.84 is: 1,762.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.54 : 3,134.75 = 1,276.84 : x
  2. Step 2: Convert to fraction form
    2,271.54/3,134.75 = 1,276.84/x
  3. Step 3: Cross multiply
    2,271.54x = 3,134.75 × 1,276.84
  4. Step 4: Simplify right side
    2,271.54x = 4,002,574.19
  5. Step 5: Solve for x
    x = 4,002,574.19/2,271.54
  6. Step 6: Final answer
    x = 1,762.05

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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.