Home / 2,475.11-3,415.65-1,356.02

Finding the Fourth Proportional to 2,475.11, 3,415.65 and 1,356.02

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Solution

The fourth proportional to 2,475.11, 3,415.65 and 1,356.02 is: 1,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.11 : 3,415.65 = 1,356.02 : x
  2. Step 2: Convert to fraction form
    2,475.11/3,415.65 = 1,356.02/x
  3. Step 3: Cross multiply
    2,475.11x = 3,415.65 × 1,356.02
  4. Step 4: Simplify right side
    2,475.11x = 4,631,707.20
  5. Step 5: Solve for x
    x = 4,631,707.20/2,475.11
  6. Step 6: Final answer
    x = 1,871.32

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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.