Home / 1,708.76-2,359.44-1,271.36

Finding the Fourth Proportional to 1,708.76, 2,359.44 and 1,271.36

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Solution

The fourth proportional to 1,708.76, 2,359.44 and 1,271.36 is: 1,755.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.76 : 2,359.44 = 1,271.36 : x
  2. Step 2: Convert to fraction form
    1,708.76/2,359.44 = 1,271.36/x
  3. Step 3: Cross multiply
    1,708.76x = 2,359.44 × 1,271.36
  4. Step 4: Simplify right side
    1,708.76x = 2,999,697.64
  5. Step 5: Solve for x
    x = 2,999,697.64/1,708.76
  6. Step 6: Final answer
    x = 1,755.48

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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.