Home / 5,135.91-7,703.88-1,240.32

Finding the Fourth Proportional to 5,135.91, 7,703.88 and 1,240.32

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Solution

The fourth proportional to 5,135.91, 7,703.88 and 1,240.32 is: 1,860.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.91 : 7,703.88 = 1,240.32 : x
  2. Step 2: Convert to fraction form
    5,135.91/7,703.88 = 1,240.32/x
  3. Step 3: Cross multiply
    5,135.91x = 7,703.88 × 1,240.32
  4. Step 4: Simplify right side
    5,135.91x = 9,555,252.20
  5. Step 5: Solve for x
    x = 9,555,252.20/5,135.91
  6. Step 6: Final answer
    x = 1,860.48

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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.