Home / 2,915.09-4,022.80-1,588.79

Finding the Fourth Proportional to 2,915.09, 4,022.80 and 1,588.79

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Solution

The fourth proportional to 2,915.09, 4,022.80 and 1,588.79 is: 2,192.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.09 : 4,022.80 = 1,588.79 : x
  2. Step 2: Convert to fraction form
    2,915.09/4,022.80 = 1,588.79/x
  3. Step 3: Cross multiply
    2,915.09x = 4,022.80 × 1,588.79
  4. Step 4: Simplify right side
    2,915.09x = 6,391,384.41
  5. Step 5: Solve for x
    x = 6,391,384.41/2,915.09
  6. Step 6: Final answer
    x = 2,192.52

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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.