Home / 1,653.04-2,278.76-1,259.38

Finding the Fourth Proportional to 1,653.04, 2,278.76 and 1,259.38

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Solution

The fourth proportional to 1,653.04, 2,278.76 and 1,259.38 is: 1,736.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653.04 : 2,278.76 = 1,259.38 : x
  2. Step 2: Convert to fraction form
    1,653.04/2,278.76 = 1,259.38/x
  3. Step 3: Cross multiply
    1,653.04x = 2,278.76 × 1,259.38
  4. Step 4: Simplify right side
    1,653.04x = 2,869,824.77
  5. Step 5: Solve for x
    x = 2,869,824.77/1,653.04
  6. Step 6: Final answer
    x = 1,736.09

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Half scale
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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.