Home / 7,807.28-10,774.13-4,270.42

Finding the Fourth Proportional to 7,807.28, 10,774.13 and 4,270.42

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Solution

The fourth proportional to 7,807.28, 10,774.13 and 4,270.42 is: 5,893.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,807.28 : 10,774.13 = 4,270.42 : x
  2. Step 2: Convert to fraction form
    7,807.28/10,774.13 = 4,270.42/x
  3. Step 3: Cross multiply
    7,807.28x = 10,774.13 × 4,270.42
  4. Step 4: Simplify right side
    7,807.28x = 46,010,060.23
  5. Step 5: Solve for x
    x = 46,010,060.23/7,807.28
  6. Step 6: Final answer
    x = 5,893.23

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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.