Home / 3,430.35-4,733.57-1,938.40

Finding the Fourth Proportional to 3,430.35, 4,733.57 and 1,938.40

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Solution

The fourth proportional to 3,430.35, 4,733.57 and 1,938.40 is: 2,674.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.35 : 4,733.57 = 1,938.40 : x
  2. Step 2: Convert to fraction form
    3,430.35/4,733.57 = 1,938.40/x
  3. Step 3: Cross multiply
    3,430.35x = 4,733.57 × 1,938.40
  4. Step 4: Simplify right side
    3,430.35x = 9,175,545.10
  5. Step 5: Solve for x
    x = 9,175,545.10/3,430.35
  6. Step 6: Final answer
    x = 2,674.81

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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.