Home / 4,875.78-6,728.47-2,859.69

Finding the Fourth Proportional to 4,875.78, 6,728.47 and 2,859.69

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Solution

The fourth proportional to 4,875.78, 6,728.47 and 2,859.69 is: 3,946.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,875.78 : 6,728.47 = 2,859.69 : x
  2. Step 2: Convert to fraction form
    4,875.78/6,728.47 = 2,859.69/x
  3. Step 3: Cross multiply
    4,875.78x = 6,728.47 × 2,859.69
  4. Step 4: Simplify right side
    4,875.78x = 19,241,338.37
  5. Step 5: Solve for x
    x = 19,241,338.37/4,875.78
  6. Step 6: Final answer
    x = 3,946.31

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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.