Home / 1,855.02-2,559.06-1,191.63

Finding the Fourth Proportional to 1,855.02, 2,559.06 and 1,191.63

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Solution

The fourth proportional to 1,855.02, 2,559.06 and 1,191.63 is: 1,643.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855.02 : 2,559.06 = 1,191.63 : x
  2. Step 2: Convert to fraction form
    1,855.02/2,559.06 = 1,191.63/x
  3. Step 3: Cross multiply
    1,855.02x = 2,559.06 × 1,191.63
  4. Step 4: Simplify right side
    1,855.02x = 3,049,452.67
  5. Step 5: Solve for x
    x = 3,049,452.67/1,855.02
  6. Step 6: Final answer
    x = 1,643.89

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1.5x scale

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.