Home / 7,419.61-11,130.51-2,420.36

Finding the Fourth Proportional to 7,419.61, 11,130.51 and 2,420.36

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Solution

The fourth proportional to 7,419.61, 11,130.51 and 2,420.36 is: 3,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.61 : 11,130.51 = 2,420.36 : x
  2. Step 2: Convert to fraction form
    7,419.61/11,130.51 = 2,420.36/x
  3. Step 3: Cross multiply
    7,419.61x = 11,130.51 × 2,420.36
  4. Step 4: Simplify right side
    7,419.61x = 26,939,836.35
  5. Step 5: Solve for x
    x = 26,939,836.35/7,419.61
  6. Step 6: Final answer
    x = 3,630.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.