Home / 6,740.80-10,100.40-4,429.60

Finding the Fourth Proportional to 6,740.80, 10,100.40 and 4,429.60

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Solution

The fourth proportional to 6,740.80, 10,100.40 and 4,429.60 is: 6,637.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,740.80 : 10,100.40 = 4,429.60 : x
  2. Step 2: Convert to fraction form
    6,740.80/10,100.40 = 4,429.60/x
  3. Step 3: Cross multiply
    6,740.80x = 10,100.40 × 4,429.60
  4. Step 4: Simplify right side
    6,740.80x = 44,740,731.84
  5. Step 5: Solve for x
    x = 44,740,731.84/6,740.80
  6. Step 6: Final answer
    x = 6,637.30

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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.