Home / 3,939,750.40-5,435,929.56-2,390,977.75

Finding the Fourth Proportional to 3,939,750.40, 5,435,929.56 and 2,390,977.75

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Solution

The fourth proportional to 3,939,750.40, 5,435,929.56 and 2,390,977.75 is: 3,298,987.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,750.40 : 5,435,929.56 = 2,390,977.75 : x
  2. Step 2: Convert to fraction form
    3,939,750.40/5,435,929.56 = 2,390,977.75/x
  3. Step 3: Cross multiply
    3,939,750.40x = 5,435,929.56 × 2,390,977.75
  4. Step 4: Simplify right side
    3,939,750.40x = 12,997,186,628,527.29
  5. Step 5: Solve for x
    x = 12,997,186,628,527.29/3,939,750.40
  6. Step 6: Final answer
    x = 3,298,987.32

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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.