Home / 3,578.06-4,935.68-2,870.69

Finding the Fourth Proportional to 3,578.06, 4,935.68 and 2,870.69

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Solution

The fourth proportional to 3,578.06, 4,935.68 and 2,870.69 is: 3,959.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.06 : 4,935.68 = 2,870.69 : x
  2. Step 2: Convert to fraction form
    3,578.06/4,935.68 = 2,870.69/x
  3. Step 3: Cross multiply
    3,578.06x = 4,935.68 × 2,870.69
  4. Step 4: Simplify right side
    3,578.06x = 14,168,768.19
  5. Step 5: Solve for x
    x = 14,168,768.19/3,578.06
  6. Step 6: Final answer
    x = 3,959.91

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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.