Home / 3,939,760.90-5,435,944.02-2,390,988.28

Finding the Fourth Proportional to 3,939,760.90, 5,435,944.02 and 2,390,988.28

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Solution

The fourth proportional to 3,939,760.90, 5,435,944.02 and 2,390,988.28 is: 3,299,001.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,760.90 : 5,435,944.02 = 2,390,988.28 : x
  2. Step 2: Convert to fraction form
    3,939,760.90/5,435,944.02 = 2,390,988.28/x
  3. Step 3: Cross multiply
    3,939,760.90x = 5,435,944.02 × 2,390,988.28
  4. Step 4: Simplify right side
    3,939,760.90x = 12,997,278,442,556.08
  5. Step 5: Solve for x
    x = 12,997,278,442,556.08/3,939,760.90
  6. Step 6: Final answer
    x = 3,299,001.84

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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.