Home / 3,520.10-4,857.54-1,948.28

Finding the Fourth Proportional to 3,520.10, 4,857.54 and 1,948.28

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Solution

The fourth proportional to 3,520.10, 4,857.54 and 1,948.28 is: 2,688.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.10 : 4,857.54 = 1,948.28 : x
  2. Step 2: Convert to fraction form
    3,520.10/4,857.54 = 1,948.28/x
  3. Step 3: Cross multiply
    3,520.10x = 4,857.54 × 1,948.28
  4. Step 4: Simplify right side
    3,520.10x = 9,463,848.03
  5. Step 5: Solve for x
    x = 9,463,848.03/3,520.10
  6. Step 6: Final answer
    x = 2,688.52

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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.