Home / 6,225.40-9,338.10-4,378.60

Finding the Fourth Proportional to 6,225.40, 9,338.10 and 4,378.60

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Solution

The fourth proportional to 6,225.40, 9,338.10 and 4,378.60 is: 6,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,225.40 : 9,338.10 = 4,378.60 : x
  2. Step 2: Convert to fraction form
    6,225.40/9,338.10 = 4,378.60/x
  3. Step 3: Cross multiply
    6,225.40x = 9,338.10 × 4,378.60
  4. Step 4: Simplify right side
    6,225.40x = 40,887,804.66
  5. Step 5: Solve for x
    x = 40,887,804.66/6,225.40
  6. Step 6: Final answer
    x = 6,567.90

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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.