Home / 2,810.36-4,210.86-1,711.40

Finding the Fourth Proportional to 2,810.36, 4,210.86 and 1,711.40

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Solution

The fourth proportional to 2,810.36, 4,210.86 and 1,711.40 is: 2,564.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.36 : 4,210.86 = 1,711.40 : x
  2. Step 2: Convert to fraction form
    2,810.36/4,210.86 = 1,711.40/x
  3. Step 3: Cross multiply
    2,810.36x = 4,210.86 × 1,711.40
  4. Step 4: Simplify right side
    2,810.36x = 7,206,465.80
  5. Step 5: Solve for x
    x = 7,206,465.80/2,810.36
  6. Step 6: Final answer
    x = 2,564.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.