Home / 2,303.70-3,179.45-1,308.77

Finding the Fourth Proportional to 2,303.70, 3,179.45 and 1,308.77

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Solution

The fourth proportional to 2,303.70, 3,179.45 and 1,308.77 is: 1,806.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.70 : 3,179.45 = 1,308.77 : x
  2. Step 2: Convert to fraction form
    2,303.70/3,179.45 = 1,308.77/x
  3. Step 3: Cross multiply
    2,303.70x = 3,179.45 × 1,308.77
  4. Step 4: Simplify right side
    2,303.70x = 4,161,146.34
  5. Step 5: Solve for x
    x = 4,161,146.34/2,303.70
  6. Step 6: Final answer
    x = 1,806.29

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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.