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Finding the Fourth Proportional to 4,457.63, 6,686.12 and 1,860.57

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Solution

The fourth proportional to 4,457.63, 6,686.12 and 1,860.57 is: 2,790.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,457.63 : 6,686.12 = 1,860.57 : x
  2. Step 2: Convert to fraction form
    4,457.63/6,686.12 = 1,860.57/x
  3. Step 3: Cross multiply
    4,457.63x = 6,686.12 × 1,860.57
  4. Step 4: Simplify right side
    4,457.63x = 12,439,960.86
  5. Step 5: Solve for x
    x = 12,439,960.86/4,457.63
  6. Step 6: Final answer
    x = 2,790.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.