Home / 7,578.15-10,457.10-4,221.29

Finding the Fourth Proportional to 7,578.15, 10,457.10 and 4,221.29

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Solution

The fourth proportional to 7,578.15, 10,457.10 and 4,221.29 is: 5,824.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.15 : 10,457.10 = 4,221.29 : x
  2. Step 2: Convert to fraction form
    7,578.15/10,457.10 = 4,221.29/x
  3. Step 3: Cross multiply
    7,578.15x = 10,457.10 × 4,221.29
  4. Step 4: Simplify right side
    7,578.15x = 44,142,399.37
  5. Step 5: Solve for x
    x = 44,142,399.37/7,578.15
  6. Step 6: Final answer
    x = 5,824.96

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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.