Home / 2,415.81-3,615.51-1,870.43

Finding the Fourth Proportional to 2,415.81, 3,615.51 and 1,870.43

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Solution

The fourth proportional to 2,415.81, 3,615.51 and 1,870.43 is: 2,799.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.81 : 3,615.51 = 1,870.43 : x
  2. Step 2: Convert to fraction form
    2,415.81/3,615.51 = 1,870.43/x
  3. Step 3: Cross multiply
    2,415.81x = 3,615.51 × 1,870.43
  4. Step 4: Simplify right side
    2,415.81x = 6,762,540.29
  5. Step 5: Solve for x
    x = 6,762,540.29/2,415.81
  6. Step 6: Final answer
    x = 2,799.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.