Home / 2,923.60-4,030.38-1,803.79

Finding the Fourth Proportional to 2,923.60, 4,030.38 and 1,803.79

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Solution

The fourth proportional to 2,923.60, 4,030.38 and 1,803.79 is: 2,486.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.60 : 4,030.38 = 1,803.79 : x
  2. Step 2: Convert to fraction form
    2,923.60/4,030.38 = 1,803.79/x
  3. Step 3: Cross multiply
    2,923.60x = 4,030.38 × 1,803.79
  4. Step 4: Simplify right side
    2,923.60x = 7,269,959.14
  5. Step 5: Solve for x
    x = 7,269,959.14/2,923.60
  6. Step 6: Final answer
    x = 2,486.65

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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.