Home / 2,911.10-4,018.56-1,732.28

Finding the Fourth Proportional to 2,911.10, 4,018.56 and 1,732.28

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Solution

The fourth proportional to 2,911.10, 4,018.56 and 1,732.28 is: 2,391.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.10 : 4,018.56 = 1,732.28 : x
  2. Step 2: Convert to fraction form
    2,911.10/4,018.56 = 1,732.28/x
  3. Step 3: Cross multiply
    2,911.10x = 4,018.56 × 1,732.28
  4. Step 4: Simplify right side
    2,911.10x = 6,961,271.12
  5. Step 5: Solve for x
    x = 6,961,271.12/2,911.10
  6. Step 6: Final answer
    x = 2,391.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.