Home / 3,215.13-4,436.67-1,798.71

Finding the Fourth Proportional to 3,215.13, 4,436.67 and 1,798.71

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Solution

The fourth proportional to 3,215.13, 4,436.67 and 1,798.71 is: 2,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.13 : 4,436.67 = 1,798.71 : x
  2. Step 2: Convert to fraction form
    3,215.13/4,436.67 = 1,798.71/x
  3. Step 3: Cross multiply
    3,215.13x = 4,436.67 × 1,798.71
  4. Step 4: Simplify right side
    3,215.13x = 7,980,282.70
  5. Step 5: Solve for x
    x = 7,980,282.70/3,215.13
  6. Step 6: Final answer
    x = 2,482.10

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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.