Home / 2,102.76-2,900.68-1,263.04

Finding the Fourth Proportional to 2,102.76, 2,900.68 and 1,263.04

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Solution

The fourth proportional to 2,102.76, 2,900.68 and 1,263.04 is: 1,742.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.76 : 2,900.68 = 1,263.04 : x
  2. Step 2: Convert to fraction form
    2,102.76/2,900.68 = 1,263.04/x
  3. Step 3: Cross multiply
    2,102.76x = 2,900.68 × 1,263.04
  4. Step 4: Simplify right side
    2,102.76x = 3,663,674.87
  5. Step 5: Solve for x
    x = 3,663,674.87/2,102.76
  6. Step 6: Final answer
    x = 1,742.32

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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.