Home / 6,870.26-10,305.60-2,190.32

Finding the Fourth Proportional to 6,870.26, 10,305.60 and 2,190.32

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Solution

The fourth proportional to 6,870.26, 10,305.60 and 2,190.32 is: 3,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.26 : 10,305.60 = 2,190.32 : x
  2. Step 2: Convert to fraction form
    6,870.26/10,305.60 = 2,190.32/x
  3. Step 3: Cross multiply
    6,870.26x = 10,305.60 × 2,190.32
  4. Step 4: Simplify right side
    6,870.26x = 22,572,561.79
  5. Step 5: Solve for x
    x = 22,572,561.79/6,870.26
  6. Step 6: Final answer
    x = 3,285.55

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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.