Home / 6,140.12-9,205.38-4,187.48

Finding the Fourth Proportional to 6,140.12, 9,205.38 and 4,187.48

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Solution

The fourth proportional to 6,140.12, 9,205.38 and 4,187.48 is: 6,277.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.12 : 9,205.38 = 4,187.48 : x
  2. Step 2: Convert to fraction form
    6,140.12/9,205.38 = 4,187.48/x
  3. Step 3: Cross multiply
    6,140.12x = 9,205.38 × 4,187.48
  4. Step 4: Simplify right side
    6,140.12x = 38,547,344.64
  5. Step 5: Solve for x
    x = 38,547,344.64/6,140.12
  6. Step 6: Final answer
    x = 6,277.95

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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.