Home / 7,492.47-11,240.61-2,561.40

Finding the Fourth Proportional to 7,492.47, 11,240.61 and 2,561.40

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Solution

The fourth proportional to 7,492.47, 11,240.61 and 2,561.40 is: 3,842.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,492.47 : 11,240.61 = 2,561.40 : x
  2. Step 2: Convert to fraction form
    7,492.47/11,240.61 = 2,561.40/x
  3. Step 3: Cross multiply
    7,492.47x = 11,240.61 × 2,561.40
  4. Step 4: Simplify right side
    7,492.47x = 28,791,698.45
  5. Step 5: Solve for x
    x = 28,791,698.45/7,492.47
  6. Step 6: Final answer
    x = 3,842.75

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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.