Home / 3,015.36-4,167.36-2,271.60

Finding the Fourth Proportional to 3,015.36, 4,167.36 and 2,271.60

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Solution

The fourth proportional to 3,015.36, 4,167.36 and 2,271.60 is: 3,139.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.36 : 4,167.36 = 2,271.60 : x
  2. Step 2: Convert to fraction form
    3,015.36/4,167.36 = 2,271.60/x
  3. Step 3: Cross multiply
    3,015.36x = 4,167.36 × 2,271.60
  4. Step 4: Simplify right side
    3,015.36x = 9,466,574.98
  5. Step 5: Solve for x
    x = 9,466,574.98/3,015.36
  6. Step 6: Final answer
    x = 3,139.45

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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.