Home / 4,918.71-6,785.42-2,928.63

Finding the Fourth Proportional to 4,918.71, 6,785.42 and 2,928.63

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Solution

The fourth proportional to 4,918.71, 6,785.42 and 2,928.63 is: 4,040.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.71 : 6,785.42 = 2,928.63 : x
  2. Step 2: Convert to fraction form
    4,918.71/6,785.42 = 2,928.63/x
  3. Step 3: Cross multiply
    4,918.71x = 6,785.42 × 2,928.63
  4. Step 4: Simplify right side
    4,918.71x = 19,871,969.93
  5. Step 5: Solve for x
    x = 19,871,969.93/4,918.71
  6. Step 6: Final answer
    x = 4,040.08

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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.