Home / 7,185.32-9,915.64-4,041.50

Finding the Fourth Proportional to 7,185.32, 9,915.64 and 4,041.50

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Solution

The fourth proportional to 7,185.32, 9,915.64 and 4,041.50 is: 5,577.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185.32 : 9,915.64 = 4,041.50 : x
  2. Step 2: Convert to fraction form
    7,185.32/9,915.64 = 4,041.50/x
  3. Step 3: Cross multiply
    7,185.32x = 9,915.64 × 4,041.50
  4. Step 4: Simplify right side
    7,185.32x = 40,074,059.06
  5. Step 5: Solve for x
    x = 40,074,059.06/7,185.32
  6. Step 6: Final answer
    x = 5,577.21

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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.