Home / 3,490.04-5,232.48-1,640.20

Finding the Fourth Proportional to 3,490.04, 5,232.48 and 1,640.20

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Solution

The fourth proportional to 3,490.04, 5,232.48 and 1,640.20 is: 2,459.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.04 : 5,232.48 = 1,640.20 : x
  2. Step 2: Convert to fraction form
    3,490.04/5,232.48 = 1,640.20/x
  3. Step 3: Cross multiply
    3,490.04x = 5,232.48 × 1,640.20
  4. Step 4: Simplify right side
    3,490.04x = 8,582,313.70
  5. Step 5: Solve for x
    x = 8,582,313.70/3,490.04
  6. Step 6: Final answer
    x = 2,459.09

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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.