Home / 7,612.35-10,505.10-4,255.30

Finding the Fourth Proportional to 7,612.35, 10,505.10 and 4,255.30

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Solution

The fourth proportional to 7,612.35, 10,505.10 and 4,255.30 is: 5,872.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,612.35 : 10,505.10 = 4,255.30 : x
  2. Step 2: Convert to fraction form
    7,612.35/10,505.10 = 4,255.30/x
  3. Step 3: Cross multiply
    7,612.35x = 10,505.10 × 4,255.30
  4. Step 4: Simplify right side
    7,612.35x = 44,702,352.03
  5. Step 5: Solve for x
    x = 44,702,352.03/7,612.35
  6. Step 6: Final answer
    x = 5,872.35

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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.