Home / 2,271.36-3,130.24-1,898.40

Finding the Fourth Proportional to 2,271.36, 3,130.24 and 1,898.40

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Solution

The fourth proportional to 2,271.36, 3,130.24 and 1,898.40 is: 2,616.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.36 : 3,130.24 = 1,898.40 : x
  2. Step 2: Convert to fraction form
    2,271.36/3,130.24 = 1,898.40/x
  3. Step 3: Cross multiply
    2,271.36x = 3,130.24 × 1,898.40
  4. Step 4: Simplify right side
    2,271.36x = 5,942,447.62
  5. Step 5: Solve for x
    x = 5,942,447.62/2,271.36
  6. Step 6: Final answer
    x = 2,616.25

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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.