Home / 1,670.09-2,304.11-1,007.15

Finding the Fourth Proportional to 1,670.09, 2,304.11 and 1,007.15

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Solution

The fourth proportional to 1,670.09, 2,304.11 and 1,007.15 is: 1,389.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.09 : 2,304.11 = 1,007.15 : x
  2. Step 2: Convert to fraction form
    1,670.09/2,304.11 = 1,007.15/x
  3. Step 3: Cross multiply
    1,670.09x = 2,304.11 × 1,007.15
  4. Step 4: Simplify right side
    1,670.09x = 2,320,567.83
  5. Step 5: Solve for x
    x = 2,320,567.83/1,670.09
  6. Step 6: Final answer
    x = 1,389.49

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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.