Home / 1,739.16-2,403.21-1,318.77

Finding the Fourth Proportional to 1,739.16, 2,403.21 and 1,318.77

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Solution

The fourth proportional to 1,739.16, 2,403.21 and 1,318.77 is: 1,822.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739.16 : 2,403.21 = 1,318.77 : x
  2. Step 2: Convert to fraction form
    1,739.16/2,403.21 = 1,318.77/x
  3. Step 3: Cross multiply
    1,739.16x = 2,403.21 × 1,318.77
  4. Step 4: Simplify right side
    1,739.16x = 3,169,281.25
  5. Step 5: Solve for x
    x = 3,169,281.25/1,739.16
  6. Step 6: Final answer
    x = 1,822.31

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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.