Home / 7,625.28-11,438.16-2,430.72

Finding the Fourth Proportional to 7,625.28, 11,438.16 and 2,430.72

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Solution

The fourth proportional to 7,625.28, 11,438.16 and 2,430.72 is: 3,646.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,625.28 : 11,438.16 = 2,430.72 : x
  2. Step 2: Convert to fraction form
    7,625.28/11,438.16 = 2,430.72/x
  3. Step 3: Cross multiply
    7,625.28x = 11,438.16 × 2,430.72
  4. Step 4: Simplify right side
    7,625.28x = 27,802,964.28
  5. Step 5: Solve for x
    x = 27,802,964.28/7,625.28
  6. Step 6: Final answer
    x = 3,646.16

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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.