Home / 2,825.27-3,898.63-1,646.45

Finding the Fourth Proportional to 2,825.27, 3,898.63 and 1,646.45

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Solution

The fourth proportional to 2,825.27, 3,898.63 and 1,646.45 is: 2,271.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.27 : 3,898.63 = 1,646.45 : x
  2. Step 2: Convert to fraction form
    2,825.27/3,898.63 = 1,646.45/x
  3. Step 3: Cross multiply
    2,825.27x = 3,898.63 × 1,646.45
  4. Step 4: Simplify right side
    2,825.27x = 6,418,899.36
  5. Step 5: Solve for x
    x = 6,418,899.36/2,825.27
  6. Step 6: Final answer
    x = 2,271.96

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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.