Home / 3,724.89-5,140.32-2,068.89

Finding the Fourth Proportional to 3,724.89, 5,140.32 and 2,068.89

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Solution

The fourth proportional to 3,724.89, 5,140.32 and 2,068.89 is: 2,855.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.89 : 5,140.32 = 2,068.89 : x
  2. Step 2: Convert to fraction form
    3,724.89/5,140.32 = 2,068.89/x
  3. Step 3: Cross multiply
    3,724.89x = 5,140.32 × 2,068.89
  4. Step 4: Simplify right side
    3,724.89x = 10,634,756.64
  5. Step 5: Solve for x
    x = 10,634,756.64/3,724.89
  6. Step 6: Final answer
    x = 2,855.05

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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.