Home / 5,359.30-7,396.05-3,121.18

Finding the Fourth Proportional to 5,359.30, 7,396.05 and 3,121.18

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Solution

The fourth proportional to 5,359.30, 7,396.05 and 3,121.18 is: 4,307.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.30 : 7,396.05 = 3,121.18 : x
  2. Step 2: Convert to fraction form
    5,359.30/7,396.05 = 3,121.18/x
  3. Step 3: Cross multiply
    5,359.30x = 7,396.05 × 3,121.18
  4. Step 4: Simplify right side
    5,359.30x = 23,084,403.34
  5. Step 5: Solve for x
    x = 23,084,403.34/5,359.30
  6. Step 6: Final answer
    x = 4,307.35

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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.