Home / 7,390.75-11,089.37-4,312.75

Finding the Fourth Proportional to 7,390.75, 11,089.37 and 4,312.75

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Solution

The fourth proportional to 7,390.75, 11,089.37 and 4,312.75 is: 6,471.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.75 : 11,089.37 = 4,312.75 : x
  2. Step 2: Convert to fraction form
    7,390.75/11,089.37 = 4,312.75/x
  3. Step 3: Cross multiply
    7,390.75x = 11,089.37 × 4,312.75
  4. Step 4: Simplify right side
    7,390.75x = 47,825,680.47
  5. Step 5: Solve for x
    x = 47,825,680.47/7,390.75
  6. Step 6: Final answer
    x = 6,471.02

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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.