Home / 4,886.16-6,744.80-3,119.28

Finding the Fourth Proportional to 4,886.16, 6,744.80 and 3,119.28

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Solution

The fourth proportional to 4,886.16, 6,744.80 and 3,119.28 is: 4,305.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886.16 : 6,744.80 = 3,119.28 : x
  2. Step 2: Convert to fraction form
    4,886.16/6,744.80 = 3,119.28/x
  3. Step 3: Cross multiply
    4,886.16x = 6,744.80 × 3,119.28
  4. Step 4: Simplify right side
    4,886.16x = 21,038,919.74
  5. Step 5: Solve for x
    x = 21,038,919.74/4,886.16
  6. Step 6: Final answer
    x = 4,305.82

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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.