Home / 1,670.40-2,304.26-1,356.02

Finding the Fourth Proportional to 1,670.40, 2,304.26 and 1,356.02

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Solution

The fourth proportional to 1,670.40, 2,304.26 and 1,356.02 is: 1,870.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.40 : 2,304.26 = 1,356.02 : x
  2. Step 2: Convert to fraction form
    1,670.40/2,304.26 = 1,356.02/x
  3. Step 3: Cross multiply
    1,670.40x = 2,304.26 × 1,356.02
  4. Step 4: Simplify right side
    1,670.40x = 3,124,622.65
  5. Step 5: Solve for x
    x = 3,124,622.65/1,670.40
  6. Step 6: Final answer
    x = 1,870.58

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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.