Home / 4,160.09-6,240.20-1,386.72

Finding the Fourth Proportional to 4,160.09, 6,240.20 and 1,386.72

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Solution

The fourth proportional to 4,160.09, 6,240.20 and 1,386.72 is: 2,080.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,160.09 : 6,240.20 = 1,386.72 : x
  2. Step 2: Convert to fraction form
    4,160.09/6,240.20 = 1,386.72/x
  3. Step 3: Cross multiply
    4,160.09x = 6,240.20 × 1,386.72
  4. Step 4: Simplify right side
    4,160.09x = 8,653,403.21
  5. Step 5: Solve for x
    x = 8,653,403.21/4,160.09
  6. Step 6: Final answer
    x = 2,080.10

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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.