Home / 1,555.58-2,146.61-966.10

Finding the Fourth Proportional to 1,555.58, 2,146.61 and 966.10

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Solution

The fourth proportional to 1,555.58, 2,146.61 and 966.10 is: 1,333.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.58 : 2,146.61 = 966.10 : x
  2. Step 2: Convert to fraction form
    1,555.58/2,146.61 = 966.10/x
  3. Step 3: Cross multiply
    1,555.58x = 2,146.61 × 966.10
  4. Step 4: Simplify right side
    1,555.58x = 2,073,836.97
  5. Step 5: Solve for x
    x = 2,073,836.97/1,555.58
  6. Step 6: Final answer
    x = 1,333.16

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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.