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Finding the Fourth Proportional to 5,164.68, 7,129.68 and 3,302.76

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Solution

The fourth proportional to 5,164.68, 7,129.68 and 3,302.76 is: 4,559.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.68 : 7,129.68 = 3,302.76 : x
  2. Step 2: Convert to fraction form
    5,164.68/7,129.68 = 3,302.76/x
  3. Step 3: Cross multiply
    5,164.68x = 7,129.68 × 3,302.76
  4. Step 4: Simplify right side
    5,164.68x = 23,547,621.92
  5. Step 5: Solve for x
    x = 23,547,621.92/5,164.68
  6. Step 6: Final answer
    x = 4,559.36

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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.