Home / 1,975.76-2,726.40-1,136.42

Finding the Fourth Proportional to 1,975.76, 2,726.40 and 1,136.42

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Solution

The fourth proportional to 1,975.76, 2,726.40 and 1,136.42 is: 1,568.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.76 : 2,726.40 = 1,136.42 : x
  2. Step 2: Convert to fraction form
    1,975.76/2,726.40 = 1,136.42/x
  3. Step 3: Cross multiply
    1,975.76x = 2,726.40 × 1,136.42
  4. Step 4: Simplify right side
    1,975.76x = 3,098,335.49
  5. Step 5: Solve for x
    x = 3,098,335.49/1,975.76
  6. Step 6: Final answer
    x = 1,568.17

Related Problems

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Half scale
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Double 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.