Home / 3,102.30-4,678.02-2,762.10

Finding the Fourth Proportional to 3,102.30, 4,678.02 and 2,762.10

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Solution

The fourth proportional to 3,102.30, 4,678.02 and 2,762.10 is: 4,165.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.30 : 4,678.02 = 2,762.10 : x
  2. Step 2: Convert to fraction form
    3,102.30/4,678.02 = 2,762.10/x
  3. Step 3: Cross multiply
    3,102.30x = 4,678.02 × 2,762.10
  4. Step 4: Simplify right side
    3,102.30x = 12,921,159.04
  5. Step 5: Solve for x
    x = 12,921,159.04/3,102.30
  6. Step 6: Final answer
    x = 4,165.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.