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Finding the Fourth Proportional to 7,612.51, 10,508.50 and 4,629.30

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Solution

The fourth proportional to 7,612.51, 10,508.50 and 4,629.30 is: 6,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,612.51 : 10,508.50 = 4,629.30 : x
  2. Step 2: Convert to fraction form
    7,612.51/10,508.50 = 4,629.30/x
  3. Step 3: Cross multiply
    7,612.51x = 10,508.50 × 4,629.30
  4. Step 4: Simplify right side
    7,612.51x = 48,646,999.05
  5. Step 5: Solve for x
    x = 48,646,999.05/7,612.51
  6. Step 6: Final answer
    x = 6,390.40

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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.