Home / 4,915.28-7,373.36-1,405.24

Finding the Fourth Proportional to 4,915.28, 7,373.36 and 1,405.24

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Solution

The fourth proportional to 4,915.28, 7,373.36 and 1,405.24 is: 2,107.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.28 : 7,373.36 = 1,405.24 : x
  2. Step 2: Convert to fraction form
    4,915.28/7,373.36 = 1,405.24/x
  3. Step 3: Cross multiply
    4,915.28x = 7,373.36 × 1,405.24
  4. Step 4: Simplify right side
    4,915.28x = 10,361,340.41
  5. Step 5: Solve for x
    x = 10,361,340.41/4,915.28
  6. Step 6: Final answer
    x = 2,107.99

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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.