Home / 1,821.12-2,513.45-1,075.26

Finding the Fourth Proportional to 1,821.12, 2,513.45 and 1,075.26

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Solution

The fourth proportional to 1,821.12, 2,513.45 and 1,075.26 is: 1,484.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.12 : 2,513.45 = 1,075.26 : x
  2. Step 2: Convert to fraction form
    1,821.12/2,513.45 = 1,075.26/x
  3. Step 3: Cross multiply
    1,821.12x = 2,513.45 × 1,075.26
  4. Step 4: Simplify right side
    1,821.12x = 2,702,612.25
  5. Step 5: Solve for x
    x = 2,702,612.25/1,821.12
  6. Step 6: Final answer
    x = 1,484.04

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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.