Home / 2,985.15-4,119.19-1,726

Finding the Fourth Proportional to 2,985.15, 4,119.19 and 1,726

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Solution

The fourth proportional to 2,985.15, 4,119.19 and 1,726 is: 2,381.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.15 : 4,119.19 = 1,726 : x
  2. Step 2: Convert to fraction form
    2,985.15/4,119.19 = 1,726/x
  3. Step 3: Cross multiply
    2,985.15x = 4,119.19 × 1,726
  4. Step 4: Simplify right side
    2,985.15x = 7,109,721.94
  5. Step 5: Solve for x
    x = 7,109,721.94/2,985.15
  6. Step 6: Final answer
    x = 2,381.70

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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.