Home / 1,464.34-2,020.53-1,390.46

Finding the Fourth Proportional to 1,464.34, 2,020.53 and 1,390.46

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Solution

The fourth proportional to 1,464.34, 2,020.53 and 1,390.46 is: 1,918.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,464.34 : 2,020.53 = 1,390.46 : x
  2. Step 2: Convert to fraction form
    1,464.34/2,020.53 = 1,390.46/x
  3. Step 3: Cross multiply
    1,464.34x = 2,020.53 × 1,390.46
  4. Step 4: Simplify right side
    1,464.34x = 2,809,466.14
  5. Step 5: Solve for x
    x = 2,809,466.14/1,464.34
  6. Step 6: Final answer
    x = 1,918.59

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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.