Home / 1,347.10-2,021-1,218.58

Finding the Fourth Proportional to 1,347.10, 2,021 and 1,218.58

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Solution

The fourth proportional to 1,347.10, 2,021 and 1,218.58 is: 1,828.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.10 : 2,021 = 1,218.58 : x
  2. Step 2: Convert to fraction form
    1,347.10/2,021 = 1,218.58/x
  3. Step 3: Cross multiply
    1,347.10x = 2,021 × 1,218.58
  4. Step 4: Simplify right side
    1,347.10x = 2,462,750.18
  5. Step 5: Solve for x
    x = 2,462,750.18/1,347.10
  6. Step 6: Final answer
    x = 1,828.19

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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.