Home / 1,762.21-2,431.69-1,053.91

Finding the Fourth Proportional to 1,762.21, 2,431.69 and 1,053.91

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Solution

The fourth proportional to 1,762.21, 2,431.69 and 1,053.91 is: 1,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,762.21 : 2,431.69 = 1,053.91 : x
  2. Step 2: Convert to fraction form
    1,762.21/2,431.69 = 1,053.91/x
  3. Step 3: Cross multiply
    1,762.21x = 2,431.69 × 1,053.91
  4. Step 4: Simplify right side
    1,762.21x = 2,562,777.14
  5. Step 5: Solve for x
    x = 2,562,777.14/1,762.21
  6. Step 6: Final answer
    x = 1,454.30

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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.