Home / 4,989.51-6,886.59-2,865.36

Finding the Fourth Proportional to 4,989.51, 6,886.59 and 2,865.36

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Solution

The fourth proportional to 4,989.51, 6,886.59 and 2,865.36 is: 3,954.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.51 : 6,886.59 = 2,865.36 : x
  2. Step 2: Convert to fraction form
    4,989.51/6,886.59 = 2,865.36/x
  3. Step 3: Cross multiply
    4,989.51x = 6,886.59 × 2,865.36
  4. Step 4: Simplify right side
    4,989.51x = 19,732,559.52
  5. Step 5: Solve for x
    x = 19,732,559.52/4,989.51
  6. Step 6: Final answer
    x = 3,954.81

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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.