Home / 2,928.04-4,040.15-1,984.59

Finding the Fourth Proportional to 2,928.04, 4,040.15 and 1,984.59

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Solution

The fourth proportional to 2,928.04, 4,040.15 and 1,984.59 is: 2,738.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.04 : 4,040.15 = 1,984.59 : x
  2. Step 2: Convert to fraction form
    2,928.04/4,040.15 = 1,984.59/x
  3. Step 3: Cross multiply
    2,928.04x = 4,040.15 × 1,984.59
  4. Step 4: Simplify right side
    2,928.04x = 8,018,031.37
  5. Step 5: Solve for x
    x = 8,018,031.37/2,928.04
  6. Step 6: Final answer
    x = 2,738.36

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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.