Home / 4,287.32-5,915.89-2,398.80

Finding the Fourth Proportional to 4,287.32, 5,915.89 and 2,398.80

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Solution

The fourth proportional to 4,287.32, 5,915.89 and 2,398.80 is: 3,310.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.32 : 5,915.89 = 2,398.80 : x
  2. Step 2: Convert to fraction form
    4,287.32/5,915.89 = 2,398.80/x
  3. Step 3: Cross multiply
    4,287.32x = 5,915.89 × 2,398.80
  4. Step 4: Simplify right side
    4,287.32x = 14,191,036.93
  5. Step 5: Solve for x
    x = 14,191,036.93/4,287.32
  6. Step 6: Final answer
    x = 3,310.00

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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.