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Finding the Fourth Proportional to 2,303.48, 3,179.48 and 1,309.31

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Solution

The fourth proportional to 2,303.48, 3,179.48 and 1,309.31 is: 1,807.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.48 : 3,179.48 = 1,309.31 : x
  2. Step 2: Convert to fraction form
    2,303.48/3,179.48 = 1,309.31/x
  3. Step 3: Cross multiply
    2,303.48x = 3,179.48 × 1,309.31
  4. Step 4: Simplify right side
    2,303.48x = 4,162,902.51
  5. Step 5: Solve for x
    x = 4,162,902.51/2,303.48
  6. Step 6: Final answer
    x = 1,807.22

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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.