Home / 2,534.21-3,497.40-1,415.20

Finding the Fourth Proportional to 2,534.21, 3,497.40 and 1,415.20

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Solution

The fourth proportional to 2,534.21, 3,497.40 and 1,415.20 is: 1,953.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,534.21 : 3,497.40 = 1,415.20 : x
  2. Step 2: Convert to fraction form
    2,534.21/3,497.40 = 1,415.20/x
  3. Step 3: Cross multiply
    2,534.21x = 3,497.40 × 1,415.20
  4. Step 4: Simplify right side
    2,534.21x = 4,949,520.48
  5. Step 5: Solve for x
    x = 4,949,520.48/2,534.21
  6. Step 6: Final answer
    x = 1,953.08

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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.