Home / 7,039.84-10,556.35-2,878.19

Finding the Fourth Proportional to 7,039.84, 10,556.35 and 2,878.19

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Solution

The fourth proportional to 7,039.84, 10,556.35 and 2,878.19 is: 4,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.84 : 10,556.35 = 2,878.19 : x
  2. Step 2: Convert to fraction form
    7,039.84/10,556.35 = 2,878.19/x
  3. Step 3: Cross multiply
    7,039.84x = 10,556.35 × 2,878.19
  4. Step 4: Simplify right side
    7,039.84x = 30,383,200.20
  5. Step 5: Solve for x
    x = 30,383,200.20/7,039.84
  6. Step 6: Final answer
    x = 4,315.90

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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.