Home / 3,457.40-5,186.10-1,148.90

Finding the Fourth Proportional to 3,457.40, 5,186.10 and 1,148.90

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Solution

The fourth proportional to 3,457.40, 5,186.10 and 1,148.90 is: 1,723.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.40 : 5,186.10 = 1,148.90 : x
  2. Step 2: Convert to fraction form
    3,457.40/5,186.10 = 1,148.90/x
  3. Step 3: Cross multiply
    3,457.40x = 5,186.10 × 1,148.90
  4. Step 4: Simplify right side
    3,457.40x = 5,958,310.29
  5. Step 5: Solve for x
    x = 5,958,310.29/3,457.40
  6. Step 6: Final answer
    x = 1,723.35

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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.