Home / 4,480.56-6,720.86-1,558.90

Finding the Fourth Proportional to 4,480.56, 6,720.86 and 1,558.90

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Solution

The fourth proportional to 4,480.56, 6,720.86 and 1,558.90 is: 2,338.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.56 : 6,720.86 = 1,558.90 : x
  2. Step 2: Convert to fraction form
    4,480.56/6,720.86 = 1,558.90/x
  3. Step 3: Cross multiply
    4,480.56x = 6,720.86 × 1,558.90
  4. Step 4: Simplify right side
    4,480.56x = 10,477,148.65
  5. Step 5: Solve for x
    x = 10,477,148.65/4,480.56
  6. Step 6: Final answer
    x = 2,338.36

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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.