Home / 1,968.96-2,938.20-1,750.80

Finding the Fourth Proportional to 1,968.96, 2,938.20 and 1,750.80

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Solution

The fourth proportional to 1,968.96, 2,938.20 and 1,750.80 is: 2,612.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.96 : 2,938.20 = 1,750.80 : x
  2. Step 2: Convert to fraction form
    1,968.96/2,938.20 = 1,750.80/x
  3. Step 3: Cross multiply
    1,968.96x = 2,938.20 × 1,750.80
  4. Step 4: Simplify right side
    1,968.96x = 5,144,200.56
  5. Step 5: Solve for x
    x = 5,144,200.56/1,968.96
  6. Step 6: Final answer
    x = 2,612.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.