Home / 1,455.32-2,182.93-1,259.69

Finding the Fourth Proportional to 1,455.32, 2,182.93 and 1,259.69

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Solution

The fourth proportional to 1,455.32, 2,182.93 and 1,259.69 is: 1,889.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.32 : 2,182.93 = 1,259.69 : x
  2. Step 2: Convert to fraction form
    1,455.32/2,182.93 = 1,259.69/x
  3. Step 3: Cross multiply
    1,455.32x = 2,182.93 × 1,259.69
  4. Step 4: Simplify right side
    1,455.32x = 2,749,801.03
  5. Step 5: Solve for x
    x = 2,749,801.03/1,455.32
  6. Step 6: Final answer
    x = 1,889.48

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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.