Home / 7,939.79-10,956.02-4,913.53

Finding the Fourth Proportional to 7,939.79, 10,956.02 and 4,913.53

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Solution

The fourth proportional to 7,939.79, 10,956.02 and 4,913.53 is: 6,780.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.79 : 10,956.02 = 4,913.53 : x
  2. Step 2: Convert to fraction form
    7,939.79/10,956.02 = 4,913.53/x
  3. Step 3: Cross multiply
    7,939.79x = 10,956.02 × 4,913.53
  4. Step 4: Simplify right side
    7,939.79x = 53,832,740.50
  5. Step 5: Solve for x
    x = 53,832,740.50/7,939.79
  6. Step 6: Final answer
    x = 6,780.12

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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.