Home / 5,242.02-7,862.64-2,280.40

Finding the Fourth Proportional to 5,242.02, 7,862.64 and 2,280.40

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Solution

The fourth proportional to 5,242.02, 7,862.64 and 2,280.40 is: 3,420.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.02 : 7,862.64 = 2,280.40 : x
  2. Step 2: Convert to fraction form
    5,242.02/7,862.64 = 2,280.40/x
  3. Step 3: Cross multiply
    5,242.02x = 7,862.64 × 2,280.40
  4. Step 4: Simplify right side
    5,242.02x = 17,929,964.26
  5. Step 5: Solve for x
    x = 17,929,964.26/5,242.02
  6. Step 6: Final answer
    x = 3,420.43

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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.