Home / 1,370.01-2,055.15-445.53

Finding the Fourth Proportional to 1,370.01, 2,055.15 and 445.53

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Solution

The fourth proportional to 1,370.01, 2,055.15 and 445.53 is: 668.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.01 : 2,055.15 = 445.53 : x
  2. Step 2: Convert to fraction form
    1,370.01/2,055.15 = 445.53/x
  3. Step 3: Cross multiply
    1,370.01x = 2,055.15 × 445.53
  4. Step 4: Simplify right side
    1,370.01x = 915,630.98
  5. Step 5: Solve for x
    x = 915,630.98/1,370.01
  6. Step 6: Final answer
    x = 668.34

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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.