Home / 2,475.09-3,415.55-1,427.31

Finding the Fourth Proportional to 2,475.09, 3,415.55 and 1,427.31

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Solution

The fourth proportional to 2,475.09, 3,415.55 and 1,427.31 is: 1,969.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.09 : 3,415.55 = 1,427.31 : x
  2. Step 2: Convert to fraction form
    2,475.09/3,415.55 = 1,427.31/x
  3. Step 3: Cross multiply
    2,475.09x = 3,415.55 × 1,427.31
  4. Step 4: Simplify right side
    2,475.09x = 4,875,041.53
  5. Step 5: Solve for x
    x = 4,875,041.53/2,475.09
  6. Step 6: Final answer
    x = 1,969.64

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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.