Home / 5,139.61-7,707.02-2,673.77

Finding the Fourth Proportional to 5,139.61, 7,707.02 and 2,673.77

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Solution

The fourth proportional to 5,139.61, 7,707.02 and 2,673.77 is: 4,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.61 : 7,707.02 = 2,673.77 : x
  2. Step 2: Convert to fraction form
    5,139.61/7,707.02 = 2,673.77/x
  3. Step 3: Cross multiply
    5,139.61x = 7,707.02 × 2,673.77
  4. Step 4: Simplify right side
    5,139.61x = 20,606,760.33
  5. Step 5: Solve for x
    x = 20,606,760.33/5,139.61
  6. Step 6: Final answer
    x = 4,009.40

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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.