Home / 1,367.40-1,887.58-949.13

Finding the Fourth Proportional to 1,367.40, 1,887.58 and 949.13

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Solution

The fourth proportional to 1,367.40, 1,887.58 and 949.13 is: 1,310.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367.40 : 1,887.58 = 949.13 : x
  2. Step 2: Convert to fraction form
    1,367.40/1,887.58 = 949.13/x
  3. Step 3: Cross multiply
    1,367.40x = 1,887.58 × 949.13
  4. Step 4: Simplify right side
    1,367.40x = 1,791,558.81
  5. Step 5: Solve for x
    x = 1,791,558.81/1,367.40
  6. Step 6: Final answer
    x = 1,310.19

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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.