Home / 7,578.22-10,457.93-4,221.32

Finding the Fourth Proportional to 7,578.22, 10,457.93 and 4,221.32

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Solution

The fourth proportional to 7,578.22, 10,457.93 and 4,221.32 is: 5,825.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.22 : 10,457.93 = 4,221.32 : x
  2. Step 2: Convert to fraction form
    7,578.22/10,457.93 = 4,221.32/x
  3. Step 3: Cross multiply
    7,578.22x = 10,457.93 × 4,221.32
  4. Step 4: Simplify right side
    7,578.22x = 44,146,274.11
  5. Step 5: Solve for x
    x = 44,146,274.11/7,578.22
  6. Step 6: Final answer
    x = 5,825.42

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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.