Home / 7,490.90-10,331.60-4,838.96

Finding the Fourth Proportional to 7,490.90, 10,331.60 and 4,838.96

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Solution

The fourth proportional to 7,490.90, 10,331.60 and 4,838.96 is: 6,673.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.90 : 10,331.60 = 4,838.96 : x
  2. Step 2: Convert to fraction form
    7,490.90/10,331.60 = 4,838.96/x
  3. Step 3: Cross multiply
    7,490.90x = 10,331.60 × 4,838.96
  4. Step 4: Simplify right side
    7,490.90x = 49,994,199.14
  5. Step 5: Solve for x
    x = 49,994,199.14/7,490.90
  6. Step 6: Final answer
    x = 6,673.99

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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.