Home / 6,457.58-8,907.70-4,066.61

Finding the Fourth Proportional to 6,457.58, 8,907.70 and 4,066.61

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Solution

The fourth proportional to 6,457.58, 8,907.70 and 4,066.61 is: 5,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,457.58 : 8,907.70 = 4,066.61 : x
  2. Step 2: Convert to fraction form
    6,457.58/8,907.70 = 4,066.61/x
  3. Step 3: Cross multiply
    6,457.58x = 8,907.70 × 4,066.61
  4. Step 4: Simplify right side
    6,457.58x = 36,224,141.90
  5. Step 5: Solve for x
    x = 36,224,141.90/6,457.58
  6. Step 6: Final answer
    x = 5,609.55

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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.