Home / 2,482.40-3,425.54-1,420.03

Finding the Fourth Proportional to 2,482.40, 3,425.54 and 1,420.03

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Solution

The fourth proportional to 2,482.40, 3,425.54 and 1,420.03 is: 1,959.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,482.40 : 3,425.54 = 1,420.03 : x
  2. Step 2: Convert to fraction form
    2,482.40/3,425.54 = 1,420.03/x
  3. Step 3: Cross multiply
    2,482.40x = 3,425.54 × 1,420.03
  4. Step 4: Simplify right side
    2,482.40x = 4,864,374.74
  5. Step 5: Solve for x
    x = 4,864,374.74/2,482.40
  6. Step 6: Final answer
    x = 1,959.55

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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.