Home / 3,108.76-4,661.90-1,547.62

Finding the Fourth Proportional to 3,108.76, 4,661.90 and 1,547.62

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Solution

The fourth proportional to 3,108.76, 4,661.90 and 1,547.62 is: 2,320.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.76 : 4,661.90 = 1,547.62 : x
  2. Step 2: Convert to fraction form
    3,108.76/4,661.90 = 1,547.62/x
  3. Step 3: Cross multiply
    3,108.76x = 4,661.90 × 1,547.62
  4. Step 4: Simplify right side
    3,108.76x = 7,214,849.68
  5. Step 5: Solve for x
    x = 7,214,849.68/3,108.76
  6. Step 6: Final answer
    x = 2,320.81

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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.