Home / 7,140.77-9,854.96-4,116.03

Finding the Fourth Proportional to 7,140.77, 9,854.96 and 4,116.03

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Solution

The fourth proportional to 7,140.77, 9,854.96 and 4,116.03 is: 5,680.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.77 : 9,854.96 = 4,116.03 : x
  2. Step 2: Convert to fraction form
    7,140.77/9,854.96 = 4,116.03/x
  3. Step 3: Cross multiply
    7,140.77x = 9,854.96 × 4,116.03
  4. Step 4: Simplify right side
    7,140.77x = 40,563,253.47
  5. Step 5: Solve for x
    x = 40,563,253.47/7,140.77
  6. Step 6: Final answer
    x = 5,680.52

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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.