Home / 1,618.02-2,218.28-1,588.86

Finding the Fourth Proportional to 1,618.02, 2,218.28 and 1,588.86

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Solution

The fourth proportional to 1,618.02, 2,218.28 and 1,588.86 is: 2,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.02 : 2,218.28 = 1,588.86 : x
  2. Step 2: Convert to fraction form
    1,618.02/2,218.28 = 1,588.86/x
  3. Step 3: Cross multiply
    1,618.02x = 2,218.28 × 1,588.86
  4. Step 4: Simplify right side
    1,618.02x = 3,524,528.42
  5. Step 5: Solve for x
    x = 3,524,528.42/1,618.02
  6. Step 6: Final answer
    x = 2,178.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.