Home / 7,148.18-10,718.34-2,216.45

Finding the Fourth Proportional to 7,148.18, 10,718.34 and 2,216.45

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Solution

The fourth proportional to 7,148.18, 10,718.34 and 2,216.45 is: 3,323.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148.18 : 10,718.34 = 2,216.45 : x
  2. Step 2: Convert to fraction form
    7,148.18/10,718.34 = 2,216.45/x
  3. Step 3: Cross multiply
    7,148.18x = 10,718.34 × 2,216.45
  4. Step 4: Simplify right side
    7,148.18x = 23,756,664.69
  5. Step 5: Solve for x
    x = 23,756,664.69/7,148.18
  6. Step 6: Final answer
    x = 3,323.46

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1.5x scale

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.