Home / 5,340.18-8,009.04-1,640.36

Finding the Fourth Proportional to 5,340.18, 8,009.04 and 1,640.36

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Solution

The fourth proportional to 5,340.18, 8,009.04 and 1,640.36 is: 2,460.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,340.18 : 8,009.04 = 1,640.36 : x
  2. Step 2: Convert to fraction form
    5,340.18/8,009.04 = 1,640.36/x
  3. Step 3: Cross multiply
    5,340.18x = 8,009.04 × 1,640.36
  4. Step 4: Simplify right side
    5,340.18x = 13,137,708.85
  5. Step 5: Solve for x
    x = 13,137,708.85/5,340.18
  6. Step 6: Final answer
    x = 2,460.16

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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.