Home / 1,697.32-2,342.40-1,276.92

Finding the Fourth Proportional to 1,697.32, 2,342.40 and 1,276.92

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Solution

The fourth proportional to 1,697.32, 2,342.40 and 1,276.92 is: 1,762.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,697.32 : 2,342.40 = 1,276.92 : x
  2. Step 2: Convert to fraction form
    1,697.32/2,342.40 = 1,276.92/x
  3. Step 3: Cross multiply
    1,697.32x = 2,342.40 × 1,276.92
  4. Step 4: Simplify right side
    1,697.32x = 2,991,047.30
  5. Step 5: Solve for x
    x = 2,991,047.30/1,697.32
  6. Step 6: Final answer
    x = 1,762.22

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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.