Home / 7,185.60-9,915.89-4,041.18

Finding the Fourth Proportional to 7,185.60, 9,915.89 and 4,041.18

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Solution

The fourth proportional to 7,185.60, 9,915.89 and 4,041.18 is: 5,576.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185.60 : 9,915.89 = 4,041.18 : x
  2. Step 2: Convert to fraction form
    7,185.60/9,915.89 = 4,041.18/x
  3. Step 3: Cross multiply
    7,185.60x = 9,915.89 × 4,041.18
  4. Step 4: Simplify right side
    7,185.60x = 40,071,876.14
  5. Step 5: Solve for x
    x = 40,071,876.14/7,185.60
  6. Step 6: Final answer
    x = 5,576.69

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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.