Home / 6,875.23-9,485.16-3,890.38

Finding the Fourth Proportional to 6,875.23, 9,485.16 and 3,890.38

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Solution

The fourth proportional to 6,875.23, 9,485.16 and 3,890.38 is: 5,367.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.23 : 9,485.16 = 3,890.38 : x
  2. Step 2: Convert to fraction form
    6,875.23/9,485.16 = 3,890.38/x
  3. Step 3: Cross multiply
    6,875.23x = 9,485.16 × 3,890.38
  4. Step 4: Simplify right side
    6,875.23x = 36,900,876.76
  5. Step 5: Solve for x
    x = 36,900,876.76/6,875.23
  6. Step 6: Final answer
    x = 5,367.22

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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.