Home / 4,845.51-6,686.50-2,828.68

Finding the Fourth Proportional to 4,845.51, 6,686.50 and 2,828.68

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Solution

The fourth proportional to 4,845.51, 6,686.50 and 2,828.68 is: 3,903.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,845.51 : 6,686.50 = 2,828.68 : x
  2. Step 2: Convert to fraction form
    4,845.51/6,686.50 = 2,828.68/x
  3. Step 3: Cross multiply
    4,845.51x = 6,686.50 × 2,828.68
  4. Step 4: Simplify right side
    4,845.51x = 18,913,968.82
  5. Step 5: Solve for x
    x = 18,913,968.82/4,845.51
  6. Step 6: Final answer
    x = 3,903.40

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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.