Home / 2,938.70-4,408.05-1,294.40

Finding the Fourth Proportional to 2,938.70, 4,408.05 and 1,294.40

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Solution

The fourth proportional to 2,938.70, 4,408.05 and 1,294.40 is: 1,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.70 : 4,408.05 = 1,294.40 : x
  2. Step 2: Convert to fraction form
    2,938.70/4,408.05 = 1,294.40/x
  3. Step 3: Cross multiply
    2,938.70x = 4,408.05 × 1,294.40
  4. Step 4: Simplify right side
    2,938.70x = 5,705,779.92
  5. Step 5: Solve for x
    x = 5,705,779.92/2,938.70
  6. Step 6: Final answer
    x = 1,941.60

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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.