Home / 5,421.49-7,482.65-3,509.66

Finding the Fourth Proportional to 5,421.49, 7,482.65 and 3,509.66

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Solution

The fourth proportional to 5,421.49, 7,482.65 and 3,509.66 is: 4,843.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.49 : 7,482.65 = 3,509.66 : x
  2. Step 2: Convert to fraction form
    5,421.49/7,482.65 = 3,509.66/x
  3. Step 3: Cross multiply
    5,421.49x = 7,482.65 × 3,509.66
  4. Step 4: Simplify right side
    5,421.49x = 26,261,558.56
  5. Step 5: Solve for x
    x = 26,261,558.56/5,421.49
  6. Step 6: Final answer
    x = 4,843.98

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1.5x scale

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.