Home / 7,899.10-10,900.32-4,914.84

Finding the Fourth Proportional to 7,899.10, 10,900.32 and 4,914.84

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Solution

The fourth proportional to 7,899.10, 10,900.32 and 4,914.84 is: 6,782.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.10 : 10,900.32 = 4,914.84 : x
  2. Step 2: Convert to fraction form
    7,899.10/10,900.32 = 4,914.84/x
  3. Step 3: Cross multiply
    7,899.10x = 10,900.32 × 4,914.84
  4. Step 4: Simplify right side
    7,899.10x = 53,573,328.75
  5. Step 5: Solve for x
    x = 53,573,328.75/7,899.10
  6. Step 6: Final answer
    x = 6,782.21

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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.