Home / 5,516.51-7,612.80-3,158.69

Finding the Fourth Proportional to 5,516.51, 7,612.80 and 3,158.69

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Solution

The fourth proportional to 5,516.51, 7,612.80 and 3,158.69 is: 4,359.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.51 : 7,612.80 = 3,158.69 : x
  2. Step 2: Convert to fraction form
    5,516.51/7,612.80 = 3,158.69/x
  3. Step 3: Cross multiply
    5,516.51x = 7,612.80 × 3,158.69
  4. Step 4: Simplify right side
    5,516.51x = 24,046,475.23
  5. Step 5: Solve for x
    x = 24,046,475.23/5,516.51
  6. Step 6: Final answer
    x = 4,359.00

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Half scale
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Double scale
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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.