Home / 4,140.29-6,210.42-1,220.64

Finding the Fourth Proportional to 4,140.29, 6,210.42 and 1,220.64

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Solution

The fourth proportional to 4,140.29, 6,210.42 and 1,220.64 is: 1,830.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.29 : 6,210.42 = 1,220.64 : x
  2. Step 2: Convert to fraction form
    4,140.29/6,210.42 = 1,220.64/x
  3. Step 3: Cross multiply
    4,140.29x = 6,210.42 × 1,220.64
  4. Step 4: Simplify right side
    4,140.29x = 7,580,687.07
  5. Step 5: Solve for x
    x = 7,580,687.07/4,140.29
  6. Step 6: Final answer
    x = 1,830.96

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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.