Home / 1,327.46-1,987.08-1,130.63

Finding the Fourth Proportional to 1,327.46, 1,987.08 and 1,130.63

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Solution

The fourth proportional to 1,327.46, 1,987.08 and 1,130.63 is: 1,692.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.46 : 1,987.08 = 1,130.63 : x
  2. Step 2: Convert to fraction form
    1,327.46/1,987.08 = 1,130.63/x
  3. Step 3: Cross multiply
    1,327.46x = 1,987.08 × 1,130.63
  4. Step 4: Simplify right side
    1,327.46x = 2,246,652.26
  5. Step 5: Solve for x
    x = 2,246,652.26/1,327.46
  6. Step 6: Final answer
    x = 1,692.44

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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.