Home / 2,312.06-3,190.37-1,303.61

Finding the Fourth Proportional to 2,312.06, 3,190.37 and 1,303.61

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Solution

The fourth proportional to 2,312.06, 3,190.37 and 1,303.61 is: 1,798.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.06 : 3,190.37 = 1,303.61 : x
  2. Step 2: Convert to fraction form
    2,312.06/3,190.37 = 1,303.61/x
  3. Step 3: Cross multiply
    2,312.06x = 3,190.37 × 1,303.61
  4. Step 4: Simplify right side
    2,312.06x = 4,158,998.24
  5. Step 5: Solve for x
    x = 4,158,998.24/2,312.06
  6. Step 6: Final answer
    x = 1,798.83

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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.