Home / 7,140.24-10,710.72-4,217.04

Finding the Fourth Proportional to 7,140.24, 10,710.72 and 4,217.04

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Solution

The fourth proportional to 7,140.24, 10,710.72 and 4,217.04 is: 6,325.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.24 : 10,710.72 = 4,217.04 : x
  2. Step 2: Convert to fraction form
    7,140.24/10,710.72 = 4,217.04/x
  3. Step 3: Cross multiply
    7,140.24x = 10,710.72 × 4,217.04
  4. Step 4: Simplify right side
    7,140.24x = 45,167,534.67
  5. Step 5: Solve for x
    x = 45,167,534.67/7,140.24
  6. Step 6: Final answer
    x = 6,325.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.