Home / 1,739.63-2,607.70-1,123.77

Finding the Fourth Proportional to 1,739.63, 2,607.70 and 1,123.77

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Solution

The fourth proportional to 1,739.63, 2,607.70 and 1,123.77 is: 1,684.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739.63 : 2,607.70 = 1,123.77 : x
  2. Step 2: Convert to fraction form
    1,739.63/2,607.70 = 1,123.77/x
  3. Step 3: Cross multiply
    1,739.63x = 2,607.70 × 1,123.77
  4. Step 4: Simplify right side
    1,739.63x = 2,930,439.18
  5. Step 5: Solve for x
    x = 2,930,439.18/1,739.63
  6. Step 6: Final answer
    x = 1,684.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.