Home / 2,836.16-3,913.80-1,658

Finding the Fourth Proportional to 2,836.16, 3,913.80 and 1,658

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Solution

The fourth proportional to 2,836.16, 3,913.80 and 1,658 is: 2,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.16 : 3,913.80 = 1,658 : x
  2. Step 2: Convert to fraction form
    2,836.16/3,913.80 = 1,658/x
  3. Step 3: Cross multiply
    2,836.16x = 3,913.80 × 1,658
  4. Step 4: Simplify right side
    2,836.16x = 6,489,080.40
  5. Step 5: Solve for x
    x = 6,489,080.40/2,836.16
  6. Step 6: Final answer
    x = 2,287.98

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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.