Home / 7,774.28-10,728.45-4,237.52

Finding the Fourth Proportional to 7,774.28, 10,728.45 and 4,237.52

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Solution

The fourth proportional to 7,774.28, 10,728.45 and 4,237.52 is: 5,847.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,774.28 : 10,728.45 = 4,237.52 : x
  2. Step 2: Convert to fraction form
    7,774.28/10,728.45 = 4,237.52/x
  3. Step 3: Cross multiply
    7,774.28x = 10,728.45 × 4,237.52
  4. Step 4: Simplify right side
    7,774.28x = 45,461,967.80
  5. Step 5: Solve for x
    x = 45,461,967.80/7,774.28
  6. Step 6: Final answer
    x = 5,847.74

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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.