Home / 1,913.01-2,867.68-613.59

Finding the Fourth Proportional to 1,913.01, 2,867.68 and 613.59

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Solution

The fourth proportional to 1,913.01, 2,867.68 and 613.59 is: 919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.01 : 2,867.68 = 613.59 : x
  2. Step 2: Convert to fraction form
    1,913.01/2,867.68 = 613.59/x
  3. Step 3: Cross multiply
    1,913.01x = 2,867.68 × 613.59
  4. Step 4: Simplify right side
    1,913.01x = 1,759,579.77
  5. Step 5: Solve for x
    x = 1,759,579.77/1,913.01
  6. Step 6: Final answer
    x = 919.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.