Home / 5,531.01-7,642.49-4,421.10

Finding the Fourth Proportional to 5,531.01, 7,642.49 and 4,421.10

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Solution

The fourth proportional to 5,531.01, 7,642.49 and 4,421.10 is: 6,108.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.01 : 7,642.49 = 4,421.10 : x
  2. Step 2: Convert to fraction form
    5,531.01/7,642.49 = 4,421.10/x
  3. Step 3: Cross multiply
    5,531.01x = 7,642.49 × 4,421.10
  4. Step 4: Simplify right side
    5,531.01x = 33,788,212.54
  5. Step 5: Solve for x
    x = 33,788,212.54/5,531.01
  6. Step 6: Final answer
    x = 6,108.87

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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.