Home / 2,915.02-4,022.84-1,588.80

Finding the Fourth Proportional to 2,915.02, 4,022.84 and 1,588.80

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Solution

The fourth proportional to 2,915.02, 4,022.84 and 1,588.80 is: 2,192.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.02 : 4,022.84 = 1,588.80 : x
  2. Step 2: Convert to fraction form
    2,915.02/4,022.84 = 1,588.80/x
  3. Step 3: Cross multiply
    2,915.02x = 4,022.84 × 1,588.80
  4. Step 4: Simplify right side
    2,915.02x = 6,391,488.19
  5. Step 5: Solve for x
    x = 6,391,488.19/2,915.02
  6. Step 6: Final answer
    x = 2,192.61

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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.