Home / 2,871.36-4,307.51-1,022.09

Finding the Fourth Proportional to 2,871.36, 4,307.51 and 1,022.09

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Solution

The fourth proportional to 2,871.36, 4,307.51 and 1,022.09 is: 1,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.36 : 4,307.51 = 1,022.09 : x
  2. Step 2: Convert to fraction form
    2,871.36/4,307.51 = 1,022.09/x
  3. Step 3: Cross multiply
    2,871.36x = 4,307.51 × 1,022.09
  4. Step 4: Simplify right side
    2,871.36x = 4,402,643.91
  5. Step 5: Solve for x
    x = 4,402,643.91/2,871.36
  6. Step 6: Final answer
    x = 1,533.30

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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.