Home / 4,210.13-5,811.80-2,639.13

Finding the Fourth Proportional to 4,210.13, 5,811.80 and 2,639.13

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Solution

The fourth proportional to 4,210.13, 5,811.80 and 2,639.13 is: 3,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,210.13 : 5,811.80 = 2,639.13 : x
  2. Step 2: Convert to fraction form
    4,210.13/5,811.80 = 2,639.13/x
  3. Step 3: Cross multiply
    4,210.13x = 5,811.80 × 2,639.13
  4. Step 4: Simplify right side
    4,210.13x = 15,338,082.54
  5. Step 5: Solve for x
    x = 15,338,082.54/4,210.13
  6. Step 6: Final answer
    x = 3,643.14

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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.