Home / 1,442.19-2,159.64-953.76

Finding the Fourth Proportional to 1,442.19, 2,159.64 and 953.76

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Solution

The fourth proportional to 1,442.19, 2,159.64 and 953.76 is: 1,428.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442.19 : 2,159.64 = 953.76 : x
  2. Step 2: Convert to fraction form
    1,442.19/2,159.64 = 953.76/x
  3. Step 3: Cross multiply
    1,442.19x = 2,159.64 × 953.76
  4. Step 4: Simplify right side
    1,442.19x = 2,059,778.25
  5. Step 5: Solve for x
    x = 2,059,778.25/1,442.19
  6. Step 6: Final answer
    x = 1,428.23

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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.