Home / 3,888,890.28-5,366,668.95-2,146,560.21

Finding the Fourth Proportional to 3,888,890.28, 5,366,668.95 and 2,146,560.21

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Solution

The fourth proportional to 3,888,890.28, 5,366,668.95 and 2,146,560.21 is: 2,962,253.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888,890.28 : 5,366,668.95 = 2,146,560.21 : x
  2. Step 2: Convert to fraction form
    3,888,890.28/5,366,668.95 = 2,146,560.21/x
  3. Step 3: Cross multiply
    3,888,890.28x = 5,366,668.95 × 2,146,560.21
  4. Step 4: Simplify right side
    3,888,890.28x = 11,519,878,028,312.48
  5. Step 5: Solve for x
    x = 11,519,878,028,312.48/3,888,890.28
  6. Step 6: Final answer
    x = 2,962,253.29

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.