Home / 4,457.20-6,686.20-1,859.60

Finding the Fourth Proportional to 4,457.20, 6,686.20 and 1,859.60

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Solution

The fourth proportional to 4,457.20, 6,686.20 and 1,859.60 is: 2,789.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,457.20 : 6,686.20 = 1,859.60 : x
  2. Step 2: Convert to fraction form
    4,457.20/6,686.20 = 1,859.60/x
  3. Step 3: Cross multiply
    4,457.20x = 6,686.20 × 1,859.60
  4. Step 4: Simplify right side
    4,457.20x = 12,433,657.52
  5. Step 5: Solve for x
    x = 12,433,657.52/4,457.20
  6. Step 6: Final answer
    x = 2,789.57

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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.