Home / 7,122.80-10,673.40-4,811.60

Finding the Fourth Proportional to 7,122.80, 10,673.40 and 4,811.60

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Solution

The fourth proportional to 7,122.80, 10,673.40 and 4,811.60 is: 7,210.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.80 : 10,673.40 = 4,811.60 : x
  2. Step 2: Convert to fraction form
    7,122.80/10,673.40 = 4,811.60/x
  3. Step 3: Cross multiply
    7,122.80x = 10,673.40 × 4,811.60
  4. Step 4: Simplify right side
    7,122.80x = 51,356,131.44
  5. Step 5: Solve for x
    x = 51,356,131.44/7,122.80
  6. Step 6: Final answer
    x = 7,210.10

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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.