Home / 5,161.97-7,742.90-1,875.06

Finding the Fourth Proportional to 5,161.97, 7,742.90 and 1,875.06

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Solution

The fourth proportional to 5,161.97, 7,742.90 and 1,875.06 is: 2,812.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.97 : 7,742.90 = 1,875.06 : x
  2. Step 2: Convert to fraction form
    5,161.97/7,742.90 = 1,875.06/x
  3. Step 3: Cross multiply
    5,161.97x = 7,742.90 × 1,875.06
  4. Step 4: Simplify right side
    5,161.97x = 14,518,392.70
  5. Step 5: Solve for x
    x = 14,518,392.70/5,161.97
  6. Step 6: Final answer
    x = 2,812.57

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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.