Home / 4,621.18-6,931.80-1,158.42

Finding the Fourth Proportional to 4,621.18, 6,931.80 and 1,158.42

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Solution

The fourth proportional to 4,621.18, 6,931.80 and 1,158.42 is: 1,737.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621.18 : 6,931.80 = 1,158.42 : x
  2. Step 2: Convert to fraction form
    4,621.18/6,931.80 = 1,158.42/x
  3. Step 3: Cross multiply
    4,621.18x = 6,931.80 × 1,158.42
  4. Step 4: Simplify right side
    4,621.18x = 8,029,935.76
  5. Step 5: Solve for x
    x = 8,029,935.76/4,621.18
  6. Step 6: Final answer
    x = 1,737.64

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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.