Home / 6,140.18-9,210.96-1,979.24

Finding the Fourth Proportional to 6,140.18, 9,210.96 and 1,979.24

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Solution

The fourth proportional to 6,140.18, 9,210.96 and 1,979.24 is: 2,969.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.18 : 9,210.96 = 1,979.24 : x
  2. Step 2: Convert to fraction form
    6,140.18/9,210.96 = 1,979.24/x
  3. Step 3: Cross multiply
    6,140.18x = 9,210.96 × 1,979.24
  4. Step 4: Simplify right side
    6,140.18x = 18,230,700.47
  5. Step 5: Solve for x
    x = 18,230,700.47/6,140.18
  6. Step 6: Final answer
    x = 2,969.08

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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.