Home / 3,991,801.53-5,508,688.13-2,156,259.72

Finding the Fourth Proportional to 3,991,801.53, 5,508,688.13 and 2,156,259.72

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Solution

The fourth proportional to 3,991,801.53, 5,508,688.13 and 2,156,259.72 is: 2,975,639.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,801.53 : 5,508,688.13 = 2,156,259.72 : x
  2. Step 2: Convert to fraction form
    3,991,801.53/5,508,688.13 = 2,156,259.72/x
  3. Step 3: Cross multiply
    3,991,801.53x = 5,508,688.13 × 2,156,259.72
  4. Step 4: Simplify right side
    3,991,801.53x = 11,878,162,330,151.78
  5. Step 5: Solve for x
    x = 11,878,162,330,151.78/3,991,801.53
  6. Step 6: Final answer
    x = 2,975,639.51

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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.