Home / 5,421.89-7,488.36-3,650.42

Finding the Fourth Proportional to 5,421.89, 7,488.36 and 3,650.42

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Solution

The fourth proportional to 5,421.89, 7,488.36 and 3,650.42 is: 5,041.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.89 : 7,488.36 = 3,650.42 : x
  2. Step 2: Convert to fraction form
    5,421.89/7,488.36 = 3,650.42/x
  3. Step 3: Cross multiply
    5,421.89x = 7,488.36 × 3,650.42
  4. Step 4: Simplify right side
    5,421.89x = 27,335,621.67
  5. Step 5: Solve for x
    x = 27,335,621.67/5,421.89
  6. Step 6: Final answer
    x = 5,041.72

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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.