Home / 1,488.50-2,054.13-867.62

Finding the Fourth Proportional to 1,488.50, 2,054.13 and 867.62

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Solution

The fourth proportional to 1,488.50, 2,054.13 and 867.62 is: 1,197.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488.50 : 2,054.13 = 867.62 : x
  2. Step 2: Convert to fraction form
    1,488.50/2,054.13 = 867.62/x
  3. Step 3: Cross multiply
    1,488.50x = 2,054.13 × 867.62
  4. Step 4: Simplify right side
    1,488.50x = 1,782,204.27
  5. Step 5: Solve for x
    x = 1,782,204.27/1,488.50
  6. Step 6: Final answer
    x = 1,197.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.