Home / 7,061.76-9,745.20-4,077.36

Finding the Fourth Proportional to 7,061.76, 9,745.20 and 4,077.36

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Solution

The fourth proportional to 7,061.76, 9,745.20 and 4,077.36 is: 5,626.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,061.76 : 9,745.20 = 4,077.36 : x
  2. Step 2: Convert to fraction form
    7,061.76/9,745.20 = 4,077.36/x
  3. Step 3: Cross multiply
    7,061.76x = 9,745.20 × 4,077.36
  4. Step 4: Simplify right side
    7,061.76x = 39,734,688.67
  5. Step 5: Solve for x
    x = 39,734,688.67/7,061.76
  6. Step 6: Final answer
    x = 5,626.74

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1.5x scale

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.