Home / 4,260.10-6,390.12-1,663.04

Finding the Fourth Proportional to 4,260.10, 6,390.12 and 1,663.04

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Solution

The fourth proportional to 4,260.10, 6,390.12 and 1,663.04 is: 2,494.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260.10 : 6,390.12 = 1,663.04 : x
  2. Step 2: Convert to fraction form
    4,260.10/6,390.12 = 1,663.04/x
  3. Step 3: Cross multiply
    4,260.10x = 6,390.12 × 1,663.04
  4. Step 4: Simplify right side
    4,260.10x = 10,627,025.16
  5. Step 5: Solve for x
    x = 10,627,025.16/4,260.10
  6. Step 6: Final answer
    x = 2,494.55

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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.