Home / 2,020.64-2,788.48-1,136.74

Finding the Fourth Proportional to 2,020.64, 2,788.48 and 1,136.74

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Solution

The fourth proportional to 2,020.64, 2,788.48 and 1,136.74 is: 1,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.64 : 2,788.48 = 1,136.74 : x
  2. Step 2: Convert to fraction form
    2,020.64/2,788.48 = 1,136.74/x
  3. Step 3: Cross multiply
    2,020.64x = 2,788.48 × 1,136.74
  4. Step 4: Simplify right side
    2,020.64x = 3,169,776.76
  5. Step 5: Solve for x
    x = 3,169,776.76/2,020.64
  6. Step 6: Final answer
    x = 1,568.70

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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.