Home / 2,091.10-3,136.65-1,054.30

Finding the Fourth Proportional to 2,091.10, 3,136.65 and 1,054.30

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Solution

The fourth proportional to 2,091.10, 3,136.65 and 1,054.30 is: 1,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.10 : 3,136.65 = 1,054.30 : x
  2. Step 2: Convert to fraction form
    2,091.10/3,136.65 = 1,054.30/x
  3. Step 3: Cross multiply
    2,091.10x = 3,136.65 × 1,054.30
  4. Step 4: Simplify right side
    2,091.10x = 3,306,970.10
  5. Step 5: Solve for x
    x = 3,306,970.10/2,091.10
  6. Step 6: Final answer
    x = 1,581.45

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Similar ratio
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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.