Home / 5,485.08-7,570.02-3,127.80

Finding the Fourth Proportional to 5,485.08, 7,570.02 and 3,127.80

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Solution

The fourth proportional to 5,485.08, 7,570.02 and 3,127.80 is: 4,316.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.08 : 7,570.02 = 3,127.80 : x
  2. Step 2: Convert to fraction form
    5,485.08/7,570.02 = 3,127.80/x
  3. Step 3: Cross multiply
    5,485.08x = 7,570.02 × 3,127.80
  4. Step 4: Simplify right side
    5,485.08x = 23,677,508.56
  5. Step 5: Solve for x
    x = 23,677,508.56/5,485.08
  6. Step 6: Final answer
    x = 4,316.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.