Home / 5,423.64-8,129.16-3,574.32

Finding the Fourth Proportional to 5,423.64, 8,129.16 and 3,574.32

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Solution

The fourth proportional to 5,423.64, 8,129.16 and 3,574.32 is: 5,357.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.64 : 8,129.16 = 3,574.32 : x
  2. Step 2: Convert to fraction form
    5,423.64/8,129.16 = 3,574.32/x
  3. Step 3: Cross multiply
    5,423.64x = 8,129.16 × 3,574.32
  4. Step 4: Simplify right side
    5,423.64x = 29,056,219.17
  5. Step 5: Solve for x
    x = 29,056,219.17/5,423.64
  6. Step 6: Final answer
    x = 5,357.33

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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.