Home / 4,210.36-5,812.16-2,639.40

Finding the Fourth Proportional to 4,210.36, 5,812.16 and 2,639.40

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Solution

The fourth proportional to 4,210.36, 5,812.16 and 2,639.40 is: 3,643.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,210.36 : 5,812.16 = 2,639.40 : x
  2. Step 2: Convert to fraction form
    4,210.36/5,812.16 = 2,639.40/x
  3. Step 3: Cross multiply
    4,210.36x = 5,812.16 × 2,639.40
  4. Step 4: Simplify right side
    4,210.36x = 15,340,615.10
  5. Step 5: Solve for x
    x = 15,340,615.10/4,210.36
  6. Step 6: Final answer
    x = 3,643.54

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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.