Home / 1,757.40-2,425.04-971.42

Finding the Fourth Proportional to 1,757.40, 2,425.04 and 971.42

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Solution

The fourth proportional to 1,757.40, 2,425.04 and 971.42 is: 1,340.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.40 : 2,425.04 = 971.42 : x
  2. Step 2: Convert to fraction form
    1,757.40/2,425.04 = 971.42/x
  3. Step 3: Cross multiply
    1,757.40x = 2,425.04 × 971.42
  4. Step 4: Simplify right side
    1,757.40x = 2,355,732.36
  5. Step 5: Solve for x
    x = 2,355,732.36/1,757.40
  6. Step 6: Final answer
    x = 1,340.46

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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.