Home / 1,970.68-2,941.40-1,938.28

Finding the Fourth Proportional to 1,970.68, 2,941.40 and 1,938.28

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Solution

The fourth proportional to 1,970.68, 2,941.40 and 1,938.28 is: 2,893.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.68 : 2,941.40 = 1,938.28 : x
  2. Step 2: Convert to fraction form
    1,970.68/2,941.40 = 1,938.28/x
  3. Step 3: Cross multiply
    1,970.68x = 2,941.40 × 1,938.28
  4. Step 4: Simplify right side
    1,970.68x = 5,701,256.79
  5. Step 5: Solve for x
    x = 5,701,256.79/1,970.68
  6. Step 6: Final answer
    x = 2,893.04

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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.