Home / 7,278.40-10,045.50-4,294.06

Finding the Fourth Proportional to 7,278.40, 10,045.50 and 4,294.06

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Solution

The fourth proportional to 7,278.40, 10,045.50 and 4,294.06 is: 5,926.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.40 : 10,045.50 = 4,294.06 : x
  2. Step 2: Convert to fraction form
    7,278.40/10,045.50 = 4,294.06/x
  3. Step 3: Cross multiply
    7,278.40x = 10,045.50 × 4,294.06
  4. Step 4: Simplify right side
    7,278.40x = 43,135,979.73
  5. Step 5: Solve for x
    x = 43,135,979.73/7,278.40
  6. Step 6: Final answer
    x = 5,926.57

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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.