Home / 2,915.09-4,373.31-835.13

Finding the Fourth Proportional to 2,915.09, 4,373.31 and 835.13

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Solution

The fourth proportional to 2,915.09, 4,373.31 and 835.13 is: 1,252.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.09 : 4,373.31 = 835.13 : x
  2. Step 2: Convert to fraction form
    2,915.09/4,373.31 = 835.13/x
  3. Step 3: Cross multiply
    2,915.09x = 4,373.31 × 835.13
  4. Step 4: Simplify right side
    2,915.09x = 3,652,260.51
  5. Step 5: Solve for x
    x = 3,652,260.51/2,915.09
  6. Step 6: Final answer
    x = 1,252.88

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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.