Home / 2,041.10-2,812.76-1,376.80

Finding the Fourth Proportional to 2,041.10, 2,812.76 and 1,376.80

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Solution

The fourth proportional to 2,041.10, 2,812.76 and 1,376.80 is: 1,897.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,041.10 : 2,812.76 = 1,376.80 : x
  2. Step 2: Convert to fraction form
    2,041.10/2,812.76 = 1,376.80/x
  3. Step 3: Cross multiply
    2,041.10x = 2,812.76 × 1,376.80
  4. Step 4: Simplify right side
    2,041.10x = 3,872,593.90
  5. Step 5: Solve for x
    x = 3,872,593.90/2,041.10
  6. Step 6: Final answer
    x = 1,897.31

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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.