Home / 3,501.10-5,253.84-1,421.11

Finding the Fourth Proportional to 3,501.10, 5,253.84 and 1,421.11

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Solution

The fourth proportional to 3,501.10, 5,253.84 and 1,421.11 is: 2,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.10 : 5,253.84 = 1,421.11 : x
  2. Step 2: Convert to fraction form
    3,501.10/5,253.84 = 1,421.11/x
  3. Step 3: Cross multiply
    3,501.10x = 5,253.84 × 1,421.11
  4. Step 4: Simplify right side
    3,501.10x = 7,466,284.56
  5. Step 5: Solve for x
    x = 7,466,284.56/3,501.10
  6. Step 6: Final answer
    x = 2,132.55

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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.