Home / 3,177.36-4,762.40-1,328.14

Finding the Fourth Proportional to 3,177.36, 4,762.40 and 1,328.14

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Solution

The fourth proportional to 3,177.36, 4,762.40 and 1,328.14 is: 1,990.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.36 : 4,762.40 = 1,328.14 : x
  2. Step 2: Convert to fraction form
    3,177.36/4,762.40 = 1,328.14/x
  3. Step 3: Cross multiply
    3,177.36x = 4,762.40 × 1,328.14
  4. Step 4: Simplify right side
    3,177.36x = 6,325,133.94
  5. Step 5: Solve for x
    x = 6,325,133.94/3,177.36
  6. Step 6: Final answer
    x = 1,990.69

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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.