Home / 5,127.61-7,689.01-3,047.89

Finding the Fourth Proportional to 5,127.61, 7,689.01 and 3,047.89

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Solution

The fourth proportional to 5,127.61, 7,689.01 and 3,047.89 is: 4,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.61 : 7,689.01 = 3,047.89 : x
  2. Step 2: Convert to fraction form
    5,127.61/7,689.01 = 3,047.89/x
  3. Step 3: Cross multiply
    5,127.61x = 7,689.01 × 3,047.89
  4. Step 4: Simplify right side
    5,127.61x = 23,435,249.07
  5. Step 5: Solve for x
    x = 23,435,249.07/5,127.61
  6. Step 6: Final answer
    x = 4,570.40

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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.