Home / 7,045.83-9,723.47-3,902.31

Finding the Fourth Proportional to 7,045.83, 9,723.47 and 3,902.31

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Solution

The fourth proportional to 7,045.83, 9,723.47 and 3,902.31 is: 5,385.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.83 : 9,723.47 = 3,902.31 : x
  2. Step 2: Convert to fraction form
    7,045.83/9,723.47 = 3,902.31/x
  3. Step 3: Cross multiply
    7,045.83x = 9,723.47 × 3,902.31
  4. Step 4: Simplify right side
    7,045.83x = 37,943,974.70
  5. Step 5: Solve for x
    x = 37,943,974.70/7,045.83
  6. Step 6: Final answer
    x = 5,385.31

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1.5x scale

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.