Home / 2,566.21-3,541.37-1,387.28

Finding the Fourth Proportional to 2,566.21, 3,541.37 and 1,387.28

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Solution

The fourth proportional to 2,566.21, 3,541.37 and 1,387.28 is: 1,914.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,566.21 : 3,541.37 = 1,387.28 : x
  2. Step 2: Convert to fraction form
    2,566.21/3,541.37 = 1,387.28/x
  3. Step 3: Cross multiply
    2,566.21x = 3,541.37 × 1,387.28
  4. Step 4: Simplify right side
    2,566.21x = 4,912,871.77
  5. Step 5: Solve for x
    x = 4,912,871.77/2,566.21
  6. Step 6: Final answer
    x = 1,914.45

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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.