Home / 1,915.20-2,852.40-1,847.16

Finding the Fourth Proportional to 1,915.20, 2,852.40 and 1,847.16

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Solution

The fourth proportional to 1,915.20, 2,852.40 and 1,847.16 is: 2,751.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.20 : 2,852.40 = 1,847.16 : x
  2. Step 2: Convert to fraction form
    1,915.20/2,852.40 = 1,847.16/x
  3. Step 3: Cross multiply
    1,915.20x = 2,852.40 × 1,847.16
  4. Step 4: Simplify right side
    1,915.20x = 5,268,839.18
  5. Step 5: Solve for x
    x = 5,268,839.18/1,915.20
  6. Step 6: Final answer
    x = 2,751.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.