Home / 4,727.89-7,083.40-2,878.05

Finding the Fourth Proportional to 4,727.89, 7,083.40 and 2,878.05

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Solution

The fourth proportional to 4,727.89, 7,083.40 and 2,878.05 is: 4,311.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,727.89 : 7,083.40 = 2,878.05 : x
  2. Step 2: Convert to fraction form
    4,727.89/7,083.40 = 2,878.05/x
  3. Step 3: Cross multiply
    4,727.89x = 7,083.40 × 2,878.05
  4. Step 4: Simplify right side
    4,727.89x = 20,386,364.29
  5. Step 5: Solve for x
    x = 20,386,364.29/4,727.89
  6. Step 6: Final answer
    x = 4,311.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.