Home / 1,445.77-2,160.73-1,056.59

Finding the Fourth Proportional to 1,445.77, 2,160.73 and 1,056.59

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Solution

The fourth proportional to 1,445.77, 2,160.73 and 1,056.59 is: 1,579.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.77 : 2,160.73 = 1,056.59 : x
  2. Step 2: Convert to fraction form
    1,445.77/2,160.73 = 1,056.59/x
  3. Step 3: Cross multiply
    1,445.77x = 2,160.73 × 1,056.59
  4. Step 4: Simplify right side
    1,445.77x = 2,283,000.43
  5. Step 5: Solve for x
    x = 2,283,000.43/1,445.77
  6. Step 6: Final answer
    x = 1,579.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.