Home / 2,192.16-3,287.79-875.10

Finding the Fourth Proportional to 2,192.16, 3,287.79 and 875.10

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Solution

The fourth proportional to 2,192.16, 3,287.79 and 875.10 is: 1,312.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.16 : 3,287.79 = 875.10 : x
  2. Step 2: Convert to fraction form
    2,192.16/3,287.79 = 875.10/x
  3. Step 3: Cross multiply
    2,192.16x = 3,287.79 × 875.10
  4. Step 4: Simplify right side
    2,192.16x = 2,877,157.36
  5. Step 5: Solve for x
    x = 2,877,157.36/2,192.16
  6. Step 6: Final answer
    x = 1,312.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.