Home / 3,430.38-4,734.12-1,938.26

Finding the Fourth Proportional to 3,430.38, 4,734.12 and 1,938.26

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Solution

The fourth proportional to 3,430.38, 4,734.12 and 1,938.26 is: 2,674.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.38 : 4,734.12 = 1,938.26 : x
  2. Step 2: Convert to fraction form
    3,430.38/4,734.12 = 1,938.26/x
  3. Step 3: Cross multiply
    3,430.38x = 4,734.12 × 1,938.26
  4. Step 4: Simplify right side
    3,430.38x = 9,175,931.76
  5. Step 5: Solve for x
    x = 9,175,931.76/3,430.38
  6. Step 6: Final answer
    x = 2,674.91

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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.