Home / 1,579.02-2,178.54-880.26

Finding the Fourth Proportional to 1,579.02, 2,178.54 and 880.26

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Solution

The fourth proportional to 1,579.02, 2,178.54 and 880.26 is: 1,214.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.02 : 2,178.54 = 880.26 : x
  2. Step 2: Convert to fraction form
    1,579.02/2,178.54 = 880.26/x
  3. Step 3: Cross multiply
    1,579.02x = 2,178.54 × 880.26
  4. Step 4: Simplify right side
    1,579.02x = 1,917,681.62
  5. Step 5: Solve for x
    x = 1,917,681.62/1,579.02
  6. Step 6: Final answer
    x = 1,214.48

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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.