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Finding the Fourth Proportional to 7,073.79, 9,768.90 and 5,827.20

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Solution

The fourth proportional to 7,073.79, 9,768.90 and 5,827.20 is: 8,047.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.79 : 9,768.90 = 5,827.20 : x
  2. Step 2: Convert to fraction form
    7,073.79/9,768.90 = 5,827.20/x
  3. Step 3: Cross multiply
    7,073.79x = 9,768.90 × 5,827.20
  4. Step 4: Simplify right side
    7,073.79x = 56,925,334.08
  5. Step 5: Solve for x
    x = 56,925,334.08/7,073.79
  6. Step 6: Final answer
    x = 8,047.36

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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.