Home / 5,077.88-7,616.75-1,329.65

Finding the Fourth Proportional to 5,077.88, 7,616.75 and 1,329.65

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Solution

The fourth proportional to 5,077.88, 7,616.75 and 1,329.65 is: 1,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.88 : 7,616.75 = 1,329.65 : x
  2. Step 2: Convert to fraction form
    5,077.88/7,616.75 = 1,329.65/x
  3. Step 3: Cross multiply
    5,077.88x = 7,616.75 × 1,329.65
  4. Step 4: Simplify right side
    5,077.88x = 10,127,566.91
  5. Step 5: Solve for x
    x = 10,127,566.91/5,077.88
  6. Step 6: Final answer
    x = 1,994.45

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1.5x scale

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.