Home / 7,561.88-10,435.64-4,578.28

Finding the Fourth Proportional to 7,561.88, 10,435.64 and 4,578.28

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Solution

The fourth proportional to 7,561.88, 10,435.64 and 4,578.28 is: 6,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,561.88 : 10,435.64 = 4,578.28 : x
  2. Step 2: Convert to fraction form
    7,561.88/10,435.64 = 4,578.28/x
  3. Step 3: Cross multiply
    7,561.88x = 10,435.64 × 4,578.28
  4. Step 4: Simplify right side
    7,561.88x = 47,777,281.90
  5. Step 5: Solve for x
    x = 47,777,281.90/7,561.88
  6. Step 6: Final answer
    x = 6,318.18

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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.