Home / 2,126.76-3,189.96-1,303.44

Finding the Fourth Proportional to 2,126.76, 3,189.96 and 1,303.44

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Solution

The fourth proportional to 2,126.76, 3,189.96 and 1,303.44 is: 1,955.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.76 : 3,189.96 = 1,303.44 : x
  2. Step 2: Convert to fraction form
    2,126.76/3,189.96 = 1,303.44/x
  3. Step 3: Cross multiply
    2,126.76x = 3,189.96 × 1,303.44
  4. Step 4: Simplify right side
    2,126.76x = 4,157,921.46
  5. Step 5: Solve for x
    x = 4,157,921.46/2,126.76
  6. Step 6: Final answer
    x = 1,955.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.