Home / 1,418.84-2,118.69-1,159.35

Finding the Fourth Proportional to 1,418.84, 2,118.69 and 1,159.35

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Solution

The fourth proportional to 1,418.84, 2,118.69 and 1,159.35 is: 1,731.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.84 : 2,118.69 = 1,159.35 : x
  2. Step 2: Convert to fraction form
    1,418.84/2,118.69 = 1,159.35/x
  3. Step 3: Cross multiply
    1,418.84x = 2,118.69 × 1,159.35
  4. Step 4: Simplify right side
    1,418.84x = 2,456,303.25
  5. Step 5: Solve for x
    x = 2,456,303.25/1,418.84
  6. Step 6: Final answer
    x = 1,731.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.