Home / 7,140.10-9,856.77-4,754.04

Finding the Fourth Proportional to 7,140.10, 9,856.77 and 4,754.04

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Solution

The fourth proportional to 7,140.10, 9,856.77 and 4,754.04 is: 6,562.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.10 : 9,856.77 = 4,754.04 : x
  2. Step 2: Convert to fraction form
    7,140.10/9,856.77 = 4,754.04/x
  3. Step 3: Cross multiply
    7,140.10x = 9,856.77 × 4,754.04
  4. Step 4: Simplify right side
    7,140.10x = 46,859,478.85
  5. Step 5: Solve for x
    x = 46,859,478.85/7,140.10
  6. Step 6: Final answer
    x = 6,562.86

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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.