Home / 2,303.51-3,178.73-1,308.65

Finding the Fourth Proportional to 2,303.51, 3,178.73 and 1,308.65

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Solution

The fourth proportional to 2,303.51, 3,178.73 and 1,308.65 is: 1,805.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.51 : 3,178.73 = 1,308.65 : x
  2. Step 2: Convert to fraction form
    2,303.51/3,178.73 = 1,308.65/x
  3. Step 3: Cross multiply
    2,303.51x = 3,178.73 × 1,308.65
  4. Step 4: Simplify right side
    2,303.51x = 4,159,845.01
  5. Step 5: Solve for x
    x = 4,159,845.01/2,303.51
  6. Step 6: Final answer
    x = 1,805.87

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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.