Home / 2,420.61-3,343.56-1,867.91

Finding the Fourth Proportional to 2,420.61, 3,343.56 and 1,867.91

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Solution

The fourth proportional to 2,420.61, 3,343.56 and 1,867.91 is: 2,580.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.61 : 3,343.56 = 1,867.91 : x
  2. Step 2: Convert to fraction form
    2,420.61/3,343.56 = 1,867.91/x
  3. Step 3: Cross multiply
    2,420.61x = 3,343.56 × 1,867.91
  4. Step 4: Simplify right side
    2,420.61x = 6,245,459.45
  5. Step 5: Solve for x
    x = 6,245,459.45/2,420.61
  6. Step 6: Final answer
    x = 2,580.12

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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.