Home / 5,457.15-8,185.77-1,561.59

Finding the Fourth Proportional to 5,457.15, 8,185.77 and 1,561.59

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Solution

The fourth proportional to 5,457.15, 8,185.77 and 1,561.59 is: 2,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.15 : 8,185.77 = 1,561.59 : x
  2. Step 2: Convert to fraction form
    5,457.15/8,185.77 = 1,561.59/x
  3. Step 3: Cross multiply
    5,457.15x = 8,185.77 × 1,561.59
  4. Step 4: Simplify right side
    5,457.15x = 12,782,816.57
  5. Step 5: Solve for x
    x = 12,782,816.57/5,457.15
  6. Step 6: Final answer
    x = 2,342.40

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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.