Home / 2,995.40-4,129.88-2,574.92

Finding the Fourth Proportional to 2,995.40, 4,129.88 and 2,574.92

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Solution

The fourth proportional to 2,995.40, 4,129.88 and 2,574.92 is: 3,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.40 : 4,129.88 = 2,574.92 : x
  2. Step 2: Convert to fraction form
    2,995.40/4,129.88 = 2,574.92/x
  3. Step 3: Cross multiply
    2,995.40x = 4,129.88 × 2,574.92
  4. Step 4: Simplify right side
    2,995.40x = 10,634,110.61
  5. Step 5: Solve for x
    x = 10,634,110.61/2,995.40
  6. Step 6: Final answer
    x = 3,550.15

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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.