Home / 3,457.10-4,770.78-1,885.19

Finding the Fourth Proportional to 3,457.10, 4,770.78 and 1,885.19

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Solution

The fourth proportional to 3,457.10, 4,770.78 and 1,885.19 is: 2,601.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.10 : 4,770.78 = 1,885.19 : x
  2. Step 2: Convert to fraction form
    3,457.10/4,770.78 = 1,885.19/x
  3. Step 3: Cross multiply
    3,457.10x = 4,770.78 × 1,885.19
  4. Step 4: Simplify right side
    3,457.10x = 8,993,802.89
  5. Step 5: Solve for x
    x = 8,993,802.89/3,457.10
  6. Step 6: Final answer
    x = 2,601.55

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Double scale
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Similar ratio
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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.