Home / 7,766.79-10,712.39-4,931.72

Finding the Fourth Proportional to 7,766.79, 10,712.39 and 4,931.72

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Solution

The fourth proportional to 7,766.79, 10,712.39 and 4,931.72 is: 6,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.79 : 10,712.39 = 4,931.72 : x
  2. Step 2: Convert to fraction form
    7,766.79/10,712.39 = 4,931.72/x
  3. Step 3: Cross multiply
    7,766.79x = 10,712.39 × 4,931.72
  4. Step 4: Simplify right side
    7,766.79x = 52,830,469.96
  5. Step 5: Solve for x
    x = 52,830,469.96/7,766.79
  6. Step 6: Final answer
    x = 6,802.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.