Home / 2,670.10-4,002.45-1,210.30

Finding the Fourth Proportional to 2,670.10, 4,002.45 and 1,210.30

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Solution

The fourth proportional to 2,670.10, 4,002.45 and 1,210.30 is: 1,814.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.10 : 4,002.45 = 1,210.30 : x
  2. Step 2: Convert to fraction form
    2,670.10/4,002.45 = 1,210.30/x
  3. Step 3: Cross multiply
    2,670.10x = 4,002.45 × 1,210.30
  4. Step 4: Simplify right side
    2,670.10x = 4,844,165.24
  5. Step 5: Solve for x
    x = 4,844,165.24/2,670.10
  6. Step 6: Final answer
    x = 1,814.23

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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.