Home / 5,387.40-7,435.30-3,030.00

Finding the Fourth Proportional to 5,387.40, 7,435.30 and 3,030.00

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Solution

The fourth proportional to 5,387.40, 7,435.30 and 3,030.00 is: 4,181.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.40 : 7,435.30 = 3,030.00 : x
  2. Step 2: Convert to fraction form
    5,387.40/7,435.30 = 3,030.00/x
  3. Step 3: Cross multiply
    5,387.40x = 7,435.30 × 3,030.00
  4. Step 4: Simplify right side
    5,387.40x = 22,528,921.82
  5. Step 5: Solve for x
    x = 22,528,921.82/5,387.40
  6. Step 6: Final answer
    x = 4,181.78

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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.