Home / 7,764.98-10,715.68-4,228.18

Finding the Fourth Proportional to 7,764.98, 10,715.68 and 4,228.18

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Solution

The fourth proportional to 7,764.98, 10,715.68 and 4,228.18 is: 5,834.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.98 : 10,715.68 = 4,228.18 : x
  2. Step 2: Convert to fraction form
    7,764.98/10,715.68 = 4,228.18/x
  3. Step 3: Cross multiply
    7,764.98x = 10,715.68 × 4,228.18
  4. Step 4: Simplify right side
    7,764.98x = 45,307,823.86
  5. Step 5: Solve for x
    x = 45,307,823.86/7,764.98
  6. Step 6: Final answer
    x = 5,834.89

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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.