Home / 1,606.02-2,408.63-783.86

Finding the Fourth Proportional to 1,606.02, 2,408.63 and 783.86

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Solution

The fourth proportional to 1,606.02, 2,408.63 and 783.86 is: 1,175.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,606.02 : 2,408.63 = 783.86 : x
  2. Step 2: Convert to fraction form
    1,606.02/2,408.63 = 783.86/x
  3. Step 3: Cross multiply
    1,606.02x = 2,408.63 × 783.86
  4. Step 4: Simplify right side
    1,606.02x = 1,888,028.71
  5. Step 5: Solve for x
    x = 1,888,028.71/1,606.02
  6. Step 6: Final answer
    x = 1,175.59

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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.