Home / 2,921.81-4,030.77-1,725.98

Finding the Fourth Proportional to 2,921.81, 4,030.77 and 1,725.98

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Solution

The fourth proportional to 2,921.81, 4,030.77 and 1,725.98 is: 2,381.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.81 : 4,030.77 = 1,725.98 : x
  2. Step 2: Convert to fraction form
    2,921.81/4,030.77 = 1,725.98/x
  3. Step 3: Cross multiply
    2,921.81x = 4,030.77 × 1,725.98
  4. Step 4: Simplify right side
    2,921.81x = 6,957,028.40
  5. Step 5: Solve for x
    x = 6,957,028.40/2,921.81
  6. Step 6: Final answer
    x = 2,381.07

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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.