Home / 6,140.29-9,215.07-4,922.40

Finding the Fourth Proportional to 6,140.29, 9,215.07 and 4,922.40

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Solution

The fourth proportional to 6,140.29, 9,215.07 and 4,922.40 is: 7,387.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.29 : 9,215.07 = 4,922.40 : x
  2. Step 2: Convert to fraction form
    6,140.29/9,215.07 = 4,922.40/x
  3. Step 3: Cross multiply
    6,140.29x = 9,215.07 × 4,922.40
  4. Step 4: Simplify right side
    6,140.29x = 45,360,260.57
  5. Step 5: Solve for x
    x = 45,360,260.57/6,140.29
  6. Step 6: Final answer
    x = 7,387.32

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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.