Home / 1,101.40-1,653.63-1,051.16

Finding the Fourth Proportional to 1,101.40, 1,653.63 and 1,051.16

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Solution

The fourth proportional to 1,101.40, 1,653.63 and 1,051.16 is: 1,578.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101.40 : 1,653.63 = 1,051.16 : x
  2. Step 2: Convert to fraction form
    1,101.40/1,653.63 = 1,051.16/x
  3. Step 3: Cross multiply
    1,101.40x = 1,653.63 × 1,051.16
  4. Step 4: Simplify right side
    1,101.40x = 1,738,233.84
  5. Step 5: Solve for x
    x = 1,738,233.84/1,101.40
  6. Step 6: Final answer
    x = 1,578.21

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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.