Home / 4,122.98-5,690.08-2,355.15

Finding the Fourth Proportional to 4,122.98, 5,690.08 and 2,355.15

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Solution

The fourth proportional to 4,122.98, 5,690.08 and 2,355.15 is: 3,250.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.98 : 5,690.08 = 2,355.15 : x
  2. Step 2: Convert to fraction form
    4,122.98/5,690.08 = 2,355.15/x
  3. Step 3: Cross multiply
    4,122.98x = 5,690.08 × 2,355.15
  4. Step 4: Simplify right side
    4,122.98x = 13,401,016.19
  5. Step 5: Solve for x
    x = 13,401,016.19/4,122.98
  6. Step 6: Final answer
    x = 3,250.32

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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.