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Finding the Fourth Proportional to 5,275.72, 7,919.34 and 3,088.72

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Solution

The fourth proportional to 5,275.72, 7,919.34 and 3,088.72 is: 4,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.72 : 7,919.34 = 3,088.72 : x
  2. Step 2: Convert to fraction form
    5,275.72/7,919.34 = 3,088.72/x
  3. Step 3: Cross multiply
    5,275.72x = 7,919.34 × 3,088.72
  4. Step 4: Simplify right side
    5,275.72x = 24,460,623.84
  5. Step 5: Solve for x
    x = 24,460,623.84/5,275.72
  6. Step 6: Final answer
    x = 4,636.45

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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.