Home / 2,918.54-4,378.08-1,941.68

Finding the Fourth Proportional to 2,918.54, 4,378.08 and 1,941.68

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Solution

The fourth proportional to 2,918.54, 4,378.08 and 1,941.68 is: 2,912.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.54 : 4,378.08 = 1,941.68 : x
  2. Step 2: Convert to fraction form
    2,918.54/4,378.08 = 1,941.68/x
  3. Step 3: Cross multiply
    2,918.54x = 4,378.08 × 1,941.68
  4. Step 4: Simplify right side
    2,918.54x = 8,500,830.37
  5. Step 5: Solve for x
    x = 8,500,830.37/2,918.54
  6. Step 6: Final answer
    x = 2,912.70

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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.