Home / 5,390.04-7,442.94-3,976.19

Finding the Fourth Proportional to 5,390.04, 7,442.94 and 3,976.19

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Solution

The fourth proportional to 5,390.04, 7,442.94 and 3,976.19 is: 5,490.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.04 : 7,442.94 = 3,976.19 : x
  2. Step 2: Convert to fraction form
    5,390.04/7,442.94 = 3,976.19/x
  3. Step 3: Cross multiply
    5,390.04x = 7,442.94 × 3,976.19
  4. Step 4: Simplify right side
    5,390.04x = 29,594,506.38
  5. Step 5: Solve for x
    x = 29,594,506.38/5,390.04
  6. Step 6: Final answer
    x = 5,490.59

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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.