Home / 3,938,289-5,434,838.82-2,127,453

Finding the Fourth Proportional to 3,938,289, 5,434,838.82 and 2,127,453

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Solution

The fourth proportional to 3,938,289, 5,434,838.82 and 2,127,453 is: 2,935,885.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,289 : 5,434,838.82 = 2,127,453 : x
  2. Step 2: Convert to fraction form
    3,938,289/5,434,838.82 = 2,127,453/x
  3. Step 3: Cross multiply
    3,938,289x = 5,434,838.82 × 2,127,453
  4. Step 4: Simplify right side
    3,938,289x = 11,562,364,152,125.46
  5. Step 5: Solve for x
    x = 11,562,364,152,125.46/3,938,289
  6. Step 6: Final answer
    x = 2,935,885.14

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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.