Home / 3,362.85-4,640.73-1,870.78

Finding the Fourth Proportional to 3,362.85, 4,640.73 and 1,870.78

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Solution

The fourth proportional to 3,362.85, 4,640.73 and 1,870.78 is: 2,581.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,362.85 : 4,640.73 = 1,870.78 : x
  2. Step 2: Convert to fraction form
    3,362.85/4,640.73 = 1,870.78/x
  3. Step 3: Cross multiply
    3,362.85x = 4,640.73 × 1,870.78
  4. Step 4: Simplify right side
    3,362.85x = 8,681,784.87
  5. Step 5: Solve for x
    x = 8,681,784.87/3,362.85
  6. Step 6: Final answer
    x = 2,581.67

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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.