Home / 1,327.02-1,980.50-1,292.46

Finding the Fourth Proportional to 1,327.02, 1,980.50 and 1,292.46

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Solution

The fourth proportional to 1,327.02, 1,980.50 and 1,292.46 is: 1,928.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.02 : 1,980.50 = 1,292.46 : x
  2. Step 2: Convert to fraction form
    1,327.02/1,980.50 = 1,292.46/x
  3. Step 3: Cross multiply
    1,327.02x = 1,980.50 × 1,292.46
  4. Step 4: Simplify right side
    1,327.02x = 2,559,710.57
  5. Step 5: Solve for x
    x = 2,559,710.57/1,327.02
  6. Step 6: Final answer
    x = 1,928.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.