Home / 2,920.74-4,030.95-1,801.46

Finding the Fourth Proportional to 2,920.74, 4,030.95 and 1,801.46

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Solution

The fourth proportional to 2,920.74, 4,030.95 and 1,801.46 is: 2,486.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.74 : 4,030.95 = 1,801.46 : x
  2. Step 2: Convert to fraction form
    2,920.74/4,030.95 = 1,801.46/x
  3. Step 3: Cross multiply
    2,920.74x = 4,030.95 × 1,801.46
  4. Step 4: Simplify right side
    2,920.74x = 7,261,575.03
  5. Step 5: Solve for x
    x = 7,261,575.03/2,920.74
  6. Step 6: Final answer
    x = 2,486.21

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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.