Home / 7,188.39-10,779.35-4,228.25

Finding the Fourth Proportional to 7,188.39, 10,779.35 and 4,228.25

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Solution

The fourth proportional to 7,188.39, 10,779.35 and 4,228.25 is: 6,340.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.39 : 10,779.35 = 4,228.25 : x
  2. Step 2: Convert to fraction form
    7,188.39/10,779.35 = 4,228.25/x
  3. Step 3: Cross multiply
    7,188.39x = 10,779.35 × 4,228.25
  4. Step 4: Simplify right side
    7,188.39x = 45,577,711.60
  5. Step 5: Solve for x
    x = 45,577,711.60/7,188.39
  6. Step 6: Final answer
    x = 6,340.46

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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.