Home / 1,495.10-2,242.67-455.11

Finding the Fourth Proportional to 1,495.10, 2,242.67 and 455.11

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Solution

The fourth proportional to 1,495.10, 2,242.67 and 455.11 is: 682.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.10 : 2,242.67 = 455.11 : x
  2. Step 2: Convert to fraction form
    1,495.10/2,242.67 = 455.11/x
  3. Step 3: Cross multiply
    1,495.10x = 2,242.67 × 455.11
  4. Step 4: Simplify right side
    1,495.10x = 1,020,653.66
  5. Step 5: Solve for x
    x = 1,020,653.66/1,495.10
  6. Step 6: Final answer
    x = 682.66

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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.