Home / 7,577.90-10,457.66-4,221.31

Finding the Fourth Proportional to 7,577.90, 10,457.66 and 4,221.31

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Solution

The fourth proportional to 7,577.90, 10,457.66 and 4,221.31 is: 5,825.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,577.90 : 10,457.66 = 4,221.31 : x
  2. Step 2: Convert to fraction form
    7,577.90/10,457.66 = 4,221.31/x
  3. Step 3: Cross multiply
    7,577.90x = 10,457.66 × 4,221.31
  4. Step 4: Simplify right side
    7,577.90x = 44,145,024.73
  5. Step 5: Solve for x
    x = 44,145,024.73/7,577.90
  6. Step 6: Final answer
    x = 5,825.50

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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.