Home / 5,421.48-8,130.94-2,299.76

Finding the Fourth Proportional to 5,421.48, 8,130.94 and 2,299.76

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Solution

The fourth proportional to 5,421.48, 8,130.94 and 2,299.76 is: 3,449.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.48 : 8,130.94 = 2,299.76 : x
  2. Step 2: Convert to fraction form
    5,421.48/8,130.94 = 2,299.76/x
  3. Step 3: Cross multiply
    5,421.48x = 8,130.94 × 2,299.76
  4. Step 4: Simplify right side
    5,421.48x = 18,699,210.57
  5. Step 5: Solve for x
    x = 18,699,210.57/5,421.48
  6. Step 6: Final answer
    x = 3,449.10

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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.