Home / 5,978.02-8,969.61-2,281.36

Finding the Fourth Proportional to 5,978.02, 8,969.61 and 2,281.36

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Solution

The fourth proportional to 5,978.02, 8,969.61 and 2,281.36 is: 3,423.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978.02 : 8,969.61 = 2,281.36 : x
  2. Step 2: Convert to fraction form
    5,978.02/8,969.61 = 2,281.36/x
  3. Step 3: Cross multiply
    5,978.02x = 8,969.61 × 2,281.36
  4. Step 4: Simplify right side
    5,978.02x = 20,462,909.47
  5. Step 5: Solve for x
    x = 20,462,909.47/5,978.02
  6. Step 6: Final answer
    x = 3,423.02

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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.