Home / 2,923.28-4,031.08-1,927.28

Finding the Fourth Proportional to 2,923.28, 4,031.08 and 1,927.28

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Solution

The fourth proportional to 2,923.28, 4,031.08 and 1,927.28 is: 2,657.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.28 : 4,031.08 = 1,927.28 : x
  2. Step 2: Convert to fraction form
    2,923.28/4,031.08 = 1,927.28/x
  3. Step 3: Cross multiply
    2,923.28x = 4,031.08 × 1,927.28
  4. Step 4: Simplify right side
    2,923.28x = 7,769,019.86
  5. Step 5: Solve for x
    x = 7,769,019.86/2,923.28
  6. Step 6: Final answer
    x = 2,657.64

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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.