Home / 4,187.31-6,281.13-1,555.50

Finding the Fourth Proportional to 4,187.31, 6,281.13 and 1,555.50

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Solution

The fourth proportional to 4,187.31, 6,281.13 and 1,555.50 is: 2,333.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.31 : 6,281.13 = 1,555.50 : x
  2. Step 2: Convert to fraction form
    4,187.31/6,281.13 = 1,555.50/x
  3. Step 3: Cross multiply
    4,187.31x = 6,281.13 × 1,555.50
  4. Step 4: Simplify right side
    4,187.31x = 9,770,324.91
  5. Step 5: Solve for x
    x = 9,770,324.91/4,187.31
  6. Step 6: Final answer
    x = 2,333.32

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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.