Home / 2,303.13-3,178.32-1,308.36

Finding the Fourth Proportional to 2,303.13, 3,178.32 and 1,308.36

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Solution

The fourth proportional to 2,303.13, 3,178.32 and 1,308.36 is: 1,805.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.13 : 3,178.32 = 1,308.36 : x
  2. Step 2: Convert to fraction form
    2,303.13/3,178.32 = 1,308.36/x
  3. Step 3: Cross multiply
    2,303.13x = 3,178.32 × 1,308.36
  4. Step 4: Simplify right side
    2,303.13x = 4,158,386.76
  5. Step 5: Solve for x
    x = 4,158,386.76/2,303.13
  6. Step 6: Final answer
    x = 1,805.54

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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.