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Finding the Fourth Proportional to 1,855.35, 2,560.55 and 1,332.63

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Solution

The fourth proportional to 1,855.35, 2,560.55 and 1,332.63 is: 1,839.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855.35 : 2,560.55 = 1,332.63 : x
  2. Step 2: Convert to fraction form
    1,855.35/2,560.55 = 1,332.63/x
  3. Step 3: Cross multiply
    1,855.35x = 2,560.55 × 1,332.63
  4. Step 4: Simplify right side
    1,855.35x = 3,412,259.08
  5. Step 5: Solve for x
    x = 3,412,259.08/1,855.35
  6. Step 6: Final answer
    x = 1,839.15

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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.