Home / 1,488.88-2,055.44-929.84

Finding the Fourth Proportional to 1,488.88, 2,055.44 and 929.84

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Solution

The fourth proportional to 1,488.88, 2,055.44 and 929.84 is: 1,283.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488.88 : 2,055.44 = 929.84 : x
  2. Step 2: Convert to fraction form
    1,488.88/2,055.44 = 929.84/x
  3. Step 3: Cross multiply
    1,488.88x = 2,055.44 × 929.84
  4. Step 4: Simplify right side
    1,488.88x = 1,911,230.33
  5. Step 5: Solve for x
    x = 1,911,230.33/1,488.88
  6. Step 6: Final answer
    x = 1,283.67

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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.