Home / 5,172.18-7,759.08-1,885.20

Finding the Fourth Proportional to 5,172.18, 7,759.08 and 1,885.20

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Solution

The fourth proportional to 5,172.18, 7,759.08 and 1,885.20 is: 2,828.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.18 : 7,759.08 = 1,885.20 : x
  2. Step 2: Convert to fraction form
    5,172.18/7,759.08 = 1,885.20/x
  3. Step 3: Cross multiply
    5,172.18x = 7,759.08 × 1,885.20
  4. Step 4: Simplify right side
    5,172.18x = 14,627,417.62
  5. Step 5: Solve for x
    x = 14,627,417.62/5,172.18
  6. Step 6: Final answer
    x = 2,828.10

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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.