Home / 7,913.42-11,870.82-2,070.02

Finding the Fourth Proportional to 7,913.42, 11,870.82 and 2,070.02

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Solution

The fourth proportional to 7,913.42, 11,870.82 and 2,070.02 is: 3,105.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.42 : 11,870.82 = 2,070.02 : x
  2. Step 2: Convert to fraction form
    7,913.42/11,870.82 = 2,070.02/x
  3. Step 3: Cross multiply
    7,913.42x = 11,870.82 × 2,070.02
  4. Step 4: Simplify right side
    7,913.42x = 24,572,834.82
  5. Step 5: Solve for x
    x = 24,572,834.82/7,913.42
  6. Step 6: Final answer
    x = 3,105.21

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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.