Home / 7,728.42-11,592.51-1,885.02

Finding the Fourth Proportional to 7,728.42, 11,592.51 and 1,885.02

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Solution

The fourth proportional to 7,728.42, 11,592.51 and 1,885.02 is: 2,827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.42 : 11,592.51 = 1,885.02 : x
  2. Step 2: Convert to fraction form
    7,728.42/11,592.51 = 1,885.02/x
  3. Step 3: Cross multiply
    7,728.42x = 11,592.51 × 1,885.02
  4. Step 4: Simplify right side
    7,728.42x = 21,852,113.20
  5. Step 5: Solve for x
    x = 21,852,113.20/7,728.42
  6. Step 6: Final answer
    x = 2,827.50

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.