Home / 2,475.28-3,415.80-1,427.12

Finding the Fourth Proportional to 2,475.28, 3,415.80 and 1,427.12

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Solution

The fourth proportional to 2,475.28, 3,415.80 and 1,427.12 is: 1,969.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.28 : 3,415.80 = 1,427.12 : x
  2. Step 2: Convert to fraction form
    2,475.28/3,415.80 = 1,427.12/x
  3. Step 3: Cross multiply
    2,475.28x = 3,415.80 × 1,427.12
  4. Step 4: Simplify right side
    2,475.28x = 4,874,756.50
  5. Step 5: Solve for x
    x = 4,874,756.50/2,475.28
  6. Step 6: Final answer
    x = 1,969.38

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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.