Home / 2,657.84-3,987.57-1,360.22

Finding the Fourth Proportional to 2,657.84, 3,987.57 and 1,360.22

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Solution

The fourth proportional to 2,657.84, 3,987.57 and 1,360.22 is: 2,040.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.84 : 3,987.57 = 1,360.22 : x
  2. Step 2: Convert to fraction form
    2,657.84/3,987.57 = 1,360.22/x
  3. Step 3: Cross multiply
    2,657.84x = 3,987.57 × 1,360.22
  4. Step 4: Simplify right side
    2,657.84x = 5,423,952.53
  5. Step 5: Solve for x
    x = 5,423,952.53/2,657.84
  6. Step 6: Final answer
    x = 2,040.74

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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.