Home / 4,621.79-6,931.06-2,156.15

Finding the Fourth Proportional to 4,621.79, 6,931.06 and 2,156.15

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Solution

The fourth proportional to 4,621.79, 6,931.06 and 2,156.15 is: 3,233.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621.79 : 6,931.06 = 2,156.15 : x
  2. Step 2: Convert to fraction form
    4,621.79/6,931.06 = 2,156.15/x
  3. Step 3: Cross multiply
    4,621.79x = 6,931.06 × 2,156.15
  4. Step 4: Simplify right side
    4,621.79x = 14,944,405.02
  5. Step 5: Solve for x
    x = 14,944,405.02/4,621.79
  6. Step 6: Final answer
    x = 3,233.47

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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.