Home / 5,699.02-7,864.40-3,181.10

Finding the Fourth Proportional to 5,699.02, 7,864.40 and 3,181.10

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Solution

The fourth proportional to 5,699.02, 7,864.40 and 3,181.10 is: 4,389.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,699.02 : 7,864.40 = 3,181.10 : x
  2. Step 2: Convert to fraction form
    5,699.02/7,864.40 = 3,181.10/x
  3. Step 3: Cross multiply
    5,699.02x = 7,864.40 × 3,181.10
  4. Step 4: Simplify right side
    5,699.02x = 25,017,442.84
  5. Step 5: Solve for x
    x = 25,017,442.84/5,699.02
  6. Step 6: Final answer
    x = 4,389.78

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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.