Home / 2,986.35-4,119.26-1,925.51

Finding the Fourth Proportional to 2,986.35, 4,119.26 and 1,925.51

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Solution

The fourth proportional to 2,986.35, 4,119.26 and 1,925.51 is: 2,655.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.35 : 4,119.26 = 1,925.51 : x
  2. Step 2: Convert to fraction form
    2,986.35/4,119.26 = 1,925.51/x
  3. Step 3: Cross multiply
    2,986.35x = 4,119.26 × 1,925.51
  4. Step 4: Simplify right side
    2,986.35x = 7,931,646.10
  5. Step 5: Solve for x
    x = 7,931,646.10/2,986.35
  6. Step 6: Final answer
    x = 2,655.97

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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.