Home / 2,372.57-3,274.10-1,378.40

Finding the Fourth Proportional to 2,372.57, 3,274.10 and 1,378.40

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Solution

The fourth proportional to 2,372.57, 3,274.10 and 1,378.40 is: 1,902.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,372.57 : 3,274.10 = 1,378.40 : x
  2. Step 2: Convert to fraction form
    2,372.57/3,274.10 = 1,378.40/x
  3. Step 3: Cross multiply
    2,372.57x = 3,274.10 × 1,378.40
  4. Step 4: Simplify right side
    2,372.57x = 4,513,019.44
  5. Step 5: Solve for x
    x = 4,513,019.44/2,372.57
  6. Step 6: Final answer
    x = 1,902.17

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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.