Home / 2,930.64-4,389.02-2,543.79

Finding the Fourth Proportional to 2,930.64, 4,389.02 and 2,543.79

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Solution

The fourth proportional to 2,930.64, 4,389.02 and 2,543.79 is: 3,809.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.64 : 4,389.02 = 2,543.79 : x
  2. Step 2: Convert to fraction form
    2,930.64/4,389.02 = 2,543.79/x
  3. Step 3: Cross multiply
    2,930.64x = 4,389.02 × 2,543.79
  4. Step 4: Simplify right side
    2,930.64x = 11,164,745.19
  5. Step 5: Solve for x
    x = 11,164,745.19/2,930.64
  6. Step 6: Final answer
    x = 3,809.66

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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.