Home / 5,235.93-7,225.31-2,878.15

Finding the Fourth Proportional to 5,235.93, 7,225.31 and 2,878.15

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Solution

The fourth proportional to 5,235.93, 7,225.31 and 2,878.15 is: 3,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.93 : 7,225.31 = 2,878.15 : x
  2. Step 2: Convert to fraction form
    5,235.93/7,225.31 = 2,878.15/x
  3. Step 3: Cross multiply
    5,235.93x = 7,225.31 × 2,878.15
  4. Step 4: Simplify right side
    5,235.93x = 20,795,525.98
  5. Step 5: Solve for x
    x = 20,795,525.98/5,235.93
  6. Step 6: Final answer
    x = 3,971.70

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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.