Home / 7,038.43-9,712.65-4,205.86

Finding the Fourth Proportional to 7,038.43, 9,712.65 and 4,205.86

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Solution

The fourth proportional to 7,038.43, 9,712.65 and 4,205.86 is: 5,803.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038.43 : 9,712.65 = 4,205.86 : x
  2. Step 2: Convert to fraction form
    7,038.43/9,712.65 = 4,205.86/x
  3. Step 3: Cross multiply
    7,038.43x = 9,712.65 × 4,205.86
  4. Step 4: Simplify right side
    7,038.43x = 40,850,046.13
  5. Step 5: Solve for x
    x = 40,850,046.13/7,038.43
  6. Step 6: Final answer
    x = 5,803.86

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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.