Home / 3,986.19-5,503.40-2,570.37

Finding the Fourth Proportional to 3,986.19, 5,503.40 and 2,570.37

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Solution

The fourth proportional to 3,986.19, 5,503.40 and 2,570.37 is: 3,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.19 : 5,503.40 = 2,570.37 : x
  2. Step 2: Convert to fraction form
    3,986.19/5,503.40 = 2,570.37/x
  3. Step 3: Cross multiply
    3,986.19x = 5,503.40 × 2,570.37
  4. Step 4: Simplify right side
    3,986.19x = 14,145,774.26
  5. Step 5: Solve for x
    x = 14,145,774.26/3,986.19
  6. Step 6: Final answer
    x = 3,548.70

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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.