Home / 4,989.84-6,886.26-2,865.35

Finding the Fourth Proportional to 4,989.84, 6,886.26 and 2,865.35

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Solution

The fourth proportional to 4,989.84, 6,886.26 and 2,865.35 is: 3,954.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.84 : 6,886.26 = 2,865.35 : x
  2. Step 2: Convert to fraction form
    4,989.84/6,886.26 = 2,865.35/x
  3. Step 3: Cross multiply
    4,989.84x = 6,886.26 × 2,865.35
  4. Step 4: Simplify right side
    4,989.84x = 19,731,510.66
  5. Step 5: Solve for x
    x = 19,731,510.66/4,989.84
  6. Step 6: Final answer
    x = 3,954.34

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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.