Home / 5,421.77-8,134.23-1,864.77

Finding the Fourth Proportional to 5,421.77, 8,134.23 and 1,864.77

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Solution

The fourth proportional to 5,421.77, 8,134.23 and 1,864.77 is: 2,797.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.77 : 8,134.23 = 1,864.77 : x
  2. Step 2: Convert to fraction form
    5,421.77/8,134.23 = 1,864.77/x
  3. Step 3: Cross multiply
    5,421.77x = 8,134.23 × 1,864.77
  4. Step 4: Simplify right side
    5,421.77x = 15,168,468.08
  5. Step 5: Solve for x
    x = 15,168,468.08/5,421.77
  6. Step 6: Final answer
    x = 2,797.70

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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.