Home / 4,820.87-6,653.90-3,139.34

Finding the Fourth Proportional to 4,820.87, 6,653.90 and 3,139.34

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Solution

The fourth proportional to 4,820.87, 6,653.90 and 3,139.34 is: 4,333.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820.87 : 6,653.90 = 3,139.34 : x
  2. Step 2: Convert to fraction form
    4,820.87/6,653.90 = 3,139.34/x
  3. Step 3: Cross multiply
    4,820.87x = 6,653.90 × 3,139.34
  4. Step 4: Simplify right side
    4,820.87x = 20,888,829.00
  5. Step 5: Solve for x
    x = 20,888,829.00/4,820.87
  6. Step 6: Final answer
    x = 4,333.00

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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.