Home / 2,636.66-3,638.40-1,457.75

Finding the Fourth Proportional to 2,636.66, 3,638.40 and 1,457.75

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Solution

The fourth proportional to 2,636.66, 3,638.40 and 1,457.75 is: 2,011.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.66 : 3,638.40 = 1,457.75 : x
  2. Step 2: Convert to fraction form
    2,636.66/3,638.40 = 1,457.75/x
  3. Step 3: Cross multiply
    2,636.66x = 3,638.40 × 1,457.75
  4. Step 4: Simplify right side
    2,636.66x = 5,303,877.60
  5. Step 5: Solve for x
    x = 5,303,877.60/2,636.66
  6. Step 6: Final answer
    x = 2,011.59

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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.