Home / 4,642.05-6,972.80-3,913.05

Finding the Fourth Proportional to 4,642.05, 6,972.80 and 3,913.05

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Solution

The fourth proportional to 4,642.05, 6,972.80 and 3,913.05 is: 5,877.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,642.05 : 6,972.80 = 3,913.05 : x
  2. Step 2: Convert to fraction form
    4,642.05/6,972.80 = 3,913.05/x
  3. Step 3: Cross multiply
    4,642.05x = 6,972.80 × 3,913.05
  4. Step 4: Simplify right side
    4,642.05x = 27,284,895.47
  5. Step 5: Solve for x
    x = 27,284,895.47/4,642.05
  6. Step 6: Final answer
    x = 5,877.77

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1.5x scale

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.