Home / 2,508.37-3,461.48-1,389.28

Finding the Fourth Proportional to 2,508.37, 3,461.48 and 1,389.28

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Solution

The fourth proportional to 2,508.37, 3,461.48 and 1,389.28 is: 1,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,508.37 : 3,461.48 = 1,389.28 : x
  2. Step 2: Convert to fraction form
    2,508.37/3,461.48 = 1,389.28/x
  3. Step 3: Cross multiply
    2,508.37x = 3,461.48 × 1,389.28
  4. Step 4: Simplify right side
    2,508.37x = 4,808,964.93
  5. Step 5: Solve for x
    x = 4,808,964.93/2,508.37
  6. Step 6: Final answer
    x = 1,917.17

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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.