Home / 2,459.15-3,690.67-1,289.51

Finding the Fourth Proportional to 2,459.15, 3,690.67 and 1,289.51

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Solution

The fourth proportional to 2,459.15, 3,690.67 and 1,289.51 is: 1,935.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,459.15 : 3,690.67 = 1,289.51 : x
  2. Step 2: Convert to fraction form
    2,459.15/3,690.67 = 1,289.51/x
  3. Step 3: Cross multiply
    2,459.15x = 3,690.67 × 1,289.51
  4. Step 4: Simplify right side
    2,459.15x = 4,759,155.87
  5. Step 5: Solve for x
    x = 4,759,155.87/2,459.15
  6. Step 6: Final answer
    x = 1,935.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.