Home / 2,920.10-4,029.61-1,725.47

Finding the Fourth Proportional to 2,920.10, 4,029.61 and 1,725.47

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Solution

The fourth proportional to 2,920.10, 4,029.61 and 1,725.47 is: 2,381.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.10 : 4,029.61 = 1,725.47 : x
  2. Step 2: Convert to fraction form
    2,920.10/4,029.61 = 1,725.47/x
  3. Step 3: Cross multiply
    2,920.10x = 4,029.61 × 1,725.47
  4. Step 4: Simplify right side
    2,920.10x = 6,952,971.17
  5. Step 5: Solve for x
    x = 6,952,971.17/2,920.10
  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.