Home / 2,457.07-3,390.69-1,409.06

Finding the Fourth Proportional to 2,457.07, 3,390.69 and 1,409.06

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Solution

The fourth proportional to 2,457.07, 3,390.69 and 1,409.06 is: 1,944.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.07 : 3,390.69 = 1,409.06 : x
  2. Step 2: Convert to fraction form
    2,457.07/3,390.69 = 1,409.06/x
  3. Step 3: Cross multiply
    2,457.07x = 3,390.69 × 1,409.06
  4. Step 4: Simplify right side
    2,457.07x = 4,777,699.41
  5. Step 5: Solve for x
    x = 4,777,699.41/2,457.07
  6. Step 6: Final answer
    x = 1,944.47

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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.