Home / 3,007.11-4,511.95-1,689.28

Finding the Fourth Proportional to 3,007.11, 4,511.95 and 1,689.28

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Solution

The fourth proportional to 3,007.11, 4,511.95 and 1,689.28 is: 2,534.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.11 : 4,511.95 = 1,689.28 : x
  2. Step 2: Convert to fraction form
    3,007.11/4,511.95 = 1,689.28/x
  3. Step 3: Cross multiply
    3,007.11x = 4,511.95 × 1,689.28
  4. Step 4: Simplify right side
    3,007.11x = 7,621,924.34
  5. Step 5: Solve for x
    x = 7,621,924.34/3,007.11
  6. Step 6: Final answer
    x = 2,534.63

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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.