Home / 3,054.64-4,215.40-1,657.40

Finding the Fourth Proportional to 3,054.64, 4,215.40 and 1,657.40

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Solution

The fourth proportional to 3,054.64, 4,215.40 and 1,657.40 is: 2,287.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,054.64 : 4,215.40 = 1,657.40 : x
  2. Step 2: Convert to fraction form
    3,054.64/4,215.40 = 1,657.40/x
  3. Step 3: Cross multiply
    3,054.64x = 4,215.40 × 1,657.40
  4. Step 4: Simplify right side
    3,054.64x = 6,986,603.96
  5. Step 5: Solve for x
    x = 6,986,603.96/3,054.64
  6. Step 6: Final answer
    x = 2,287.21

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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.