Home / 2,915.12-4,022.98-1,588.84

Finding the Fourth Proportional to 2,915.12, 4,022.98 and 1,588.84

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Solution

The fourth proportional to 2,915.12, 4,022.98 and 1,588.84 is: 2,192.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.12 : 4,022.98 = 1,588.84 : x
  2. Step 2: Convert to fraction form
    2,915.12/4,022.98 = 1,588.84/x
  3. Step 3: Cross multiply
    2,915.12x = 4,022.98 × 1,588.84
  4. Step 4: Simplify right side
    2,915.12x = 6,391,871.54
  5. Step 5: Solve for x
    x = 6,391,871.54/2,915.12
  6. Step 6: Final answer
    x = 2,192.66

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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.