Home / 3,129.76-4,688.83-1,567.95

Finding the Fourth Proportional to 3,129.76, 4,688.83 and 1,567.95

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Solution

The fourth proportional to 3,129.76, 4,688.83 and 1,567.95 is: 2,349.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.76 : 4,688.83 = 1,567.95 : x
  2. Step 2: Convert to fraction form
    3,129.76/4,688.83 = 1,567.95/x
  3. Step 3: Cross multiply
    3,129.76x = 4,688.83 × 1,567.95
  4. Step 4: Simplify right side
    3,129.76x = 7,351,851.00
  5. Step 5: Solve for x
    x = 7,351,851.00/3,129.76
  6. Step 6: Final answer
    x = 2,349.01

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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.