Home / 4,991.32-7,487.10-1,293.58

Finding the Fourth Proportional to 4,991.32, 7,487.10 and 1,293.58

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Solution

The fourth proportional to 4,991.32, 7,487.10 and 1,293.58 is: 1,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.32 : 7,487.10 = 1,293.58 : x
  2. Step 2: Convert to fraction form
    4,991.32/7,487.10 = 1,293.58/x
  3. Step 3: Cross multiply
    4,991.32x = 7,487.10 × 1,293.58
  4. Step 4: Simplify right side
    4,991.32x = 9,685,162.82
  5. Step 5: Solve for x
    x = 9,685,162.82/4,991.32
  6. Step 6: Final answer
    x = 1,940.40

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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.