Home / 2,403.60-3,315.93-1,506.78

Finding the Fourth Proportional to 2,403.60, 3,315.93 and 1,506.78

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Solution

The fourth proportional to 2,403.60, 3,315.93 and 1,506.78 is: 2,078.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.60 : 3,315.93 = 1,506.78 : x
  2. Step 2: Convert to fraction form
    2,403.60/3,315.93 = 1,506.78/x
  3. Step 3: Cross multiply
    2,403.60x = 3,315.93 × 1,506.78
  4. Step 4: Simplify right side
    2,403.60x = 4,996,377.01
  5. Step 5: Solve for x
    x = 4,996,377.01/2,403.60
  6. Step 6: Final answer
    x = 2,078.71

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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.