Home / 1,757.28-2,425.10-971.36

Finding the Fourth Proportional to 1,757.28, 2,425.10 and 971.36

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Solution

The fourth proportional to 1,757.28, 2,425.10 and 971.36 is: 1,340.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.28 : 2,425.10 = 971.36 : x
  2. Step 2: Convert to fraction form
    1,757.28/2,425.10 = 971.36/x
  3. Step 3: Cross multiply
    1,757.28x = 2,425.10 × 971.36
  4. Step 4: Simplify right side
    1,757.28x = 2,355,628.15
  5. Step 5: Solve for x
    x = 2,355,628.15/1,757.28
  6. Step 6: Final answer
    x = 1,340.50

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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.