Home / 7,140.69-10,699.20-2,458.17

Finding the Fourth Proportional to 7,140.69, 10,699.20 and 2,458.17

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Solution

The fourth proportional to 7,140.69, 10,699.20 and 2,458.17 is: 3,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.69 : 10,699.20 = 2,458.17 : x
  2. Step 2: Convert to fraction form
    7,140.69/10,699.20 = 2,458.17/x
  3. Step 3: Cross multiply
    7,140.69x = 10,699.20 × 2,458.17
  4. Step 4: Simplify right side
    7,140.69x = 26,300,452.46
  5. Step 5: Solve for x
    x = 26,300,452.46/7,140.69
  6. Step 6: Final answer
    x = 3,683.18

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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.