Home / 4,807.48-7,211.28-1,687.36

Finding the Fourth Proportional to 4,807.48, 7,211.28 and 1,687.36

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Solution

The fourth proportional to 4,807.48, 7,211.28 and 1,687.36 is: 2,531.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,807.48 : 7,211.28 = 1,687.36 : x
  2. Step 2: Convert to fraction form
    4,807.48/7,211.28 = 1,687.36/x
  3. Step 3: Cross multiply
    4,807.48x = 7,211.28 × 1,687.36
  4. Step 4: Simplify right side
    4,807.48x = 12,168,025.42
  5. Step 5: Solve for x
    x = 12,168,025.42/4,807.48
  6. Step 6: Final answer
    x = 2,531.06

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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.