Home / 1,648.40-2,476.88-1,241.36

Finding the Fourth Proportional to 1,648.40, 2,476.88 and 1,241.36

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Solution

The fourth proportional to 1,648.40, 2,476.88 and 1,241.36 is: 1,865.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,648.40 : 2,476.88 = 1,241.36 : x
  2. Step 2: Convert to fraction form
    1,648.40/2,476.88 = 1,241.36/x
  3. Step 3: Cross multiply
    1,648.40x = 2,476.88 × 1,241.36
  4. Step 4: Simplify right side
    1,648.40x = 3,074,699.76
  5. Step 5: Solve for x
    x = 3,074,699.76/1,648.40
  6. Step 6: Final answer
    x = 1,865.26

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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.