Home / 1,771.02-2,643.21-1,538.55

Finding the Fourth Proportional to 1,771.02, 2,643.21 and 1,538.55

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Solution

The fourth proportional to 1,771.02, 2,643.21 and 1,538.55 is: 2,296.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.02 : 2,643.21 = 1,538.55 : x
  2. Step 2: Convert to fraction form
    1,771.02/2,643.21 = 1,538.55/x
  3. Step 3: Cross multiply
    1,771.02x = 2,643.21 × 1,538.55
  4. Step 4: Simplify right side
    1,771.02x = 4,066,710.75
  5. Step 5: Solve for x
    x = 4,066,710.75/1,771.02
  6. Step 6: Final answer
    x = 2,296.25

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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.