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Finding the Fourth Proportional to 6,487.60, 8,950.22 and 4,790.16

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Solution

The fourth proportional to 6,487.60, 8,950.22 and 4,790.16 is: 6,608.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487.60 : 8,950.22 = 4,790.16 : x
  2. Step 2: Convert to fraction form
    6,487.60/8,950.22 = 4,790.16/x
  3. Step 3: Cross multiply
    6,487.60x = 8,950.22 × 4,790.16
  4. Step 4: Simplify right side
    6,487.60x = 42,872,985.84
  5. Step 5: Solve for x
    x = 42,872,985.84/6,487.60
  6. Step 6: Final answer
    x = 6,608.45

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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.