Home / 1,488.52-2,246.11-1,428.58

Finding the Fourth Proportional to 1,488.52, 2,246.11 and 1,428.58

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Solution

The fourth proportional to 1,488.52, 2,246.11 and 1,428.58 is: 2,155.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488.52 : 2,246.11 = 1,428.58 : x
  2. Step 2: Convert to fraction form
    1,488.52/2,246.11 = 1,428.58/x
  3. Step 3: Cross multiply
    1,488.52x = 2,246.11 × 1,428.58
  4. Step 4: Simplify right side
    1,488.52x = 3,208,747.82
  5. Step 5: Solve for x
    x = 3,208,747.82/1,488.52
  6. Step 6: Final answer
    x = 2,155.66

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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.