Home / 7,315.97-10,095.30-4,128.98

Finding the Fourth Proportional to 7,315.97, 10,095.30 and 4,128.98

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Solution

The fourth proportional to 7,315.97, 10,095.30 and 4,128.98 is: 5,697.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.97 : 10,095.30 = 4,128.98 : x
  2. Step 2: Convert to fraction form
    7,315.97/10,095.30 = 4,128.98/x
  3. Step 3: Cross multiply
    7,315.97x = 10,095.30 × 4,128.98
  4. Step 4: Simplify right side
    7,315.97x = 41,683,241.32
  5. Step 5: Solve for x
    x = 41,683,241.32/7,315.97
  6. Step 6: Final answer
    x = 5,697.57

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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.