Home / 5,478.55-7,558.55-3,119.02

Finding the Fourth Proportional to 5,478.55, 7,558.55 and 3,119.02

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Solution

The fourth proportional to 5,478.55, 7,558.55 and 3,119.02 is: 4,303.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.55 : 7,558.55 = 3,119.02 : x
  2. Step 2: Convert to fraction form
    5,478.55/7,558.55 = 3,119.02/x
  3. Step 3: Cross multiply
    5,478.55x = 7,558.55 × 3,119.02
  4. Step 4: Simplify right side
    5,478.55x = 23,575,245.83
  5. Step 5: Solve for x
    x = 23,575,245.83/5,478.55
  6. Step 6: Final answer
    x = 4,303.19

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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.