Home / 4,991.32-7,486.71-1,528.57

Finding the Fourth Proportional to 4,991.32, 7,486.71 and 1,528.57

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Solution

The fourth proportional to 4,991.32, 7,486.71 and 1,528.57 is: 2,292.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.32 : 7,486.71 = 1,528.57 : x
  2. Step 2: Convert to fraction form
    4,991.32/7,486.71 = 1,528.57/x
  3. Step 3: Cross multiply
    4,991.32x = 7,486.71 × 1,528.57
  4. Step 4: Simplify right side
    4,991.32x = 11,443,960.30
  5. Step 5: Solve for x
    x = 11,443,960.30/4,991.32
  6. Step 6: Final answer
    x = 2,292.77

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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.