Home / 2,318.77-3,199.88-1,256.51

Finding the Fourth Proportional to 2,318.77, 3,199.88 and 1,256.51

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Solution

The fourth proportional to 2,318.77, 3,199.88 and 1,256.51 is: 1,733.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.77 : 3,199.88 = 1,256.51 : x
  2. Step 2: Convert to fraction form
    2,318.77/3,199.88 = 1,256.51/x
  3. Step 3: Cross multiply
    2,318.77x = 3,199.88 × 1,256.51
  4. Step 4: Simplify right side
    2,318.77x = 4,020,681.22
  5. Step 5: Solve for x
    x = 4,020,681.22/2,318.77
  6. Step 6: Final answer
    x = 1,733.97

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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.