Home / 6,454-8,902.56-3,934.90

Finding the Fourth Proportional to 6,454, 8,902.56 and 3,934.90

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Solution

The fourth proportional to 6,454, 8,902.56 and 3,934.90 is: 5,427.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,454 : 8,902.56 = 3,934.90 : x
  2. Step 2: Convert to fraction form
    6,454/8,902.56 = 3,934.90/x
  3. Step 3: Cross multiply
    6,454x = 8,902.56 × 3,934.90
  4. Step 4: Simplify right side
    6,454x = 35,030,683.34
  5. Step 5: Solve for x
    x = 35,030,683.34/6,454
  6. Step 6: Final answer
    x = 5,427.75

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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.