Home / 1,650.02-2,279.40-1,318.01

Finding the Fourth Proportional to 1,650.02, 2,279.40 and 1,318.01

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Solution

The fourth proportional to 1,650.02, 2,279.40 and 1,318.01 is: 1,820.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,650.02 : 2,279.40 = 1,318.01 : x
  2. Step 2: Convert to fraction form
    1,650.02/2,279.40 = 1,318.01/x
  3. Step 3: Cross multiply
    1,650.02x = 2,279.40 × 1,318.01
  4. Step 4: Simplify right side
    1,650.02x = 3,004,271.99
  5. Step 5: Solve for x
    x = 3,004,271.99/1,650.02
  6. Step 6: Final answer
    x = 1,820.75

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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.