Home / 5,120.46-7,681.37-1,833.93

Finding the Fourth Proportional to 5,120.46, 7,681.37 and 1,833.93

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Solution

The fourth proportional to 5,120.46, 7,681.37 and 1,833.93 is: 2,751.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.46 : 7,681.37 = 1,833.93 : x
  2. Step 2: Convert to fraction form
    5,120.46/7,681.37 = 1,833.93/x
  3. Step 3: Cross multiply
    5,120.46x = 7,681.37 × 1,833.93
  4. Step 4: Simplify right side
    5,120.46x = 14,087,085.71
  5. Step 5: Solve for x
    x = 14,087,085.71/5,120.46
  6. Step 6: Final answer
    x = 2,751.14

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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.