Home / 1,850.46-2,554.06-1,221.10

Finding the Fourth Proportional to 1,850.46, 2,554.06 and 1,221.10

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Solution

The fourth proportional to 1,850.46, 2,554.06 and 1,221.10 is: 1,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.46 : 2,554.06 = 1,221.10 : x
  2. Step 2: Convert to fraction form
    1,850.46/2,554.06 = 1,221.10/x
  3. Step 3: Cross multiply
    1,850.46x = 2,554.06 × 1,221.10
  4. Step 4: Simplify right side
    1,850.46x = 3,118,762.67
  5. Step 5: Solve for x
    x = 3,118,762.67/1,850.46
  6. Step 6: Final answer
    x = 1,685.40

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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.