Home / 6,490.18-8,949.33-4,390.66

Finding the Fourth Proportional to 6,490.18, 8,949.33 and 4,390.66

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Solution

The fourth proportional to 6,490.18, 8,949.33 and 4,390.66 is: 6,054.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.18 : 8,949.33 = 4,390.66 : x
  2. Step 2: Convert to fraction form
    6,490.18/8,949.33 = 4,390.66/x
  3. Step 3: Cross multiply
    6,490.18x = 8,949.33 × 4,390.66
  4. Step 4: Simplify right side
    6,490.18x = 39,293,465.26
  5. Step 5: Solve for x
    x = 39,293,465.26/6,490.18
  6. Step 6: Final answer
    x = 6,054.30

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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.