Home / 6,740.40-10,121.40-4,558.80

Finding the Fourth Proportional to 6,740.40, 10,121.40 and 4,558.80

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Solution

The fourth proportional to 6,740.40, 10,121.40 and 4,558.80 is: 6,845.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,740.40 : 10,121.40 = 4,558.80 : x
  2. Step 2: Convert to fraction form
    6,740.40/10,121.40 = 4,558.80/x
  3. Step 3: Cross multiply
    6,740.40x = 10,121.40 × 4,558.80
  4. Step 4: Simplify right side
    6,740.40x = 46,141,438.32
  5. Step 5: Solve for x
    x = 46,141,438.32/6,740.40
  6. Step 6: Final answer
    x = 6,845.50

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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.