Home / 4,020.80-6,032.10-1,247.60

Finding the Fourth Proportional to 4,020.80, 6,032.10 and 1,247.60

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Solution

The fourth proportional to 4,020.80, 6,032.10 and 1,247.60 is: 1,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,020.80 : 6,032.10 = 1,247.60 : x
  2. Step 2: Convert to fraction form
    4,020.80/6,032.10 = 1,247.60/x
  3. Step 3: Cross multiply
    4,020.80x = 6,032.10 × 1,247.60
  4. Step 4: Simplify right side
    4,020.80x = 7,525,647.96
  5. Step 5: Solve for x
    x = 7,525,647.96/4,020.80
  6. Step 6: Final answer
    x = 1,871.68

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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.