Home / 2,923.36-4,031.60-1,928.32

Finding the Fourth Proportional to 2,923.36, 4,031.60 and 1,928.32

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Solution

The fourth proportional to 2,923.36, 4,031.60 and 1,928.32 is: 2,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.36 : 4,031.60 = 1,928.32 : x
  2. Step 2: Convert to fraction form
    2,923.36/4,031.60 = 1,928.32/x
  3. Step 3: Cross multiply
    2,923.36x = 4,031.60 × 1,928.32
  4. Step 4: Simplify right side
    2,923.36x = 7,774,214.91
  5. Step 5: Solve for x
    x = 7,774,214.91/2,923.36
  6. Step 6: Final answer
    x = 2,659.34

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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.